Theunderlinedphrase in“In this case, the role of technology can provide a significant addition to the other more conventional tools” refers to:

Text I informs that “there are numerous terms to describe the process of learning English”. Read the sentences and mark them as TRUE (T) or FALSE (F).
✓ “English as an additional language” applies to students in countries where English is the first language. ✓ The phrase “English as an additional language” is also used in places where English is not the official language. ✓ EFL refers to settings around the world where English is taught as a second language.
The statements are, respectively:

São quatro os eixos que organizam o currículo de Língua Inglesa, exceto: 

Analise os itens a seguir:    I - Dentro das atribuições federais, a Constituição Federal garante como princípio o acesso à educação e a universalização do Ensino Básico no Brasil, mas não regula a sua oferta. Esta função é exercida pela Lei de Diretrizes e Bases (LDB), o principal documento regulador da estrutura da educação no país.  II - A LDB define os papéis da União, Estados e municípios nas responsabilidades sobre a oferta do ensino no Brasil e tem como premissa a descentralização das tarefas sobre a gestão dos sistemas de ensino entre as esferas de poder, o que confere às secretarias de Educação dos Estados e municípios grande autonomia para o desenvolvimento de suas políticas de educação.  III - O ensino da língua estrangeira pertence à parte diversificada da Base Curricular Comum, o que significa que deve ser adaptado às realidades regionais, sendo que algumas redes optam por não oferecer língua inglesa (optando, ao invés disso, por oferecer o ensino de outras línguas). O fato de pertencer à parte diversificada faz com que a língua estrangeira seja menos regulamentada e muitas vezes considerada complementar dentro do currículo escolar. Esta situação confere ao inglês, quando é oferecido, um papel marginal na grade curricular, o que pode ser percebido pela carga horária menor da língua estrangeira, quando comparada à de outras disciplinas.    Quantos itens estão corretos? 

Does an Email Hacking Software really Exist? With my experience of over 10 years in the field of ethical hacking and information security, all I can tell you is that there exists no such ready-made software program (as shown and advertised on many websites) that can break into the service provider’s database and hack email passwords. This is just a myth! This may seem a bit disappointing for many, but this is the fact. However, it is still possible to easily hack email passwords using some of the alternative programs and ways as discussed below: Working Ways to Hack an Email Password: Even though it is impossible to hack the database and instantly crack the email password, it is still possible to trick the users so that they give away the password by themselves. This can be done using a handful of methods like keylogging, social engineering or phishing. However, the easiest and most effective way is by using keyloggers. A keylogger is a small program that records each and every keystroke a user types on the keyboard of a specific computer. So when you install a keylogger on the computer from where the target person is likely to access his/her email, it is possible to capture the password. Though keyloggers are not designed to hack email passwords, they can still be used to accomplish the job. Here is a list of some of the interesting facts about keyloggers: EASY TO USE: A keylogger does not require any special skills. Anyone with basic computer knowledge should be able to use it. REMAINS UNDETECTED: A keylogger will remain undetected after installation and operates in a total stealth mode. So, you need not worry about being caught or traced back. REMOTE INSTALLATION: In addition to installation on a location computer, keyloggers also support remote installation. That means you can also install it even on those computers for which you do not have physical access. (Adapted form: http://www.gohacking.com/email-hacking-software/)
A melhor tradução para o trecho from where the target person is likely to access his/her email é 

Why I miss technology-free travel
(Monday, Dec 12, 2016. Josh Noel.)
I’ve been a travel writer for almost eight years, but here's the irony: I’m probably a worse traveler now. Back when I was freewheeling and in my early 20s, I’d get into my car every summer with an atlas, a bag stuffed with CDs and very little forethought about where I was headed.                I’d be gone for two weeks to three months. The extent of the technology I carried was the portable disc player connected to my tape player by a snaking wire. I stayed in pristine riverside campgrounds, quiet roadside motels operated by charming gray-haired couples and on the couches of people I’d met earlier that day. Once I forced myself to pick up a hitchhiker, a peaceful-looking, hippie-type dude. It wasn’t the life-altering experience I’d hoped for; he just needed a ride to work at a restaurant 10 miles up the road. Another time I got to talking with a guy who said he wasn’t sure he’d be able to afford his next tank of gas. I gave him five bucks — all I could spare — and he gave me a pink crystal that he said had special powers or some such. I rode around with that crystal on my dashboard for 15 years until I gave it to a friend  who was dying of cancer. I wanted her to have something meaningful to me, and that was it, secured by chance at an Oklahoma rest stop and hauled everywhere I went until it became hers.          I don’t travel so much anymore. As much as I’d like to say it’s because of having a family and a job and obligations weightier than whether to turn left or turn right, it has more to do with the shiny little machines in our pockets. When it comes to conquering the unknown, those shiny little machines can tell us everything about everything: the top 10 hotels, top 10 attractions, top 10 kid-friendly sushi places and the top 10 vegan-and-dog-friendly cafes with Wi-Fi and a pool table. Worse, we’ve mostly given up thinking about how we get from point A to point B. I have mistyped a couple of letters of a street name into Waze, and unquestioningly driven a route that I knew made no sense. But the shiny little machine says it is so! When I realized my mistake, I was furious not because I was going to be late or because I had wasted time, but because I had surrendered my critical thinking about how I got from point A to point B.   So as I can, I build unpredictability into my routine. I walk different ways to work, to the train, to the bus and around our neighborhood with my little son. When traveling, I demand unpredictability. Yes, the quickest route and top-ranked whatever is mighty attractive (especially the quickest route), but when I can build in time for wandering, I do it. When I can spend time finding my way by foot — no apps or phone maps      — I do that. When I can leave a hotel room with only a minimal plan, I walk out the front door. I duck into a bar. I sip a beer that I can’t find back home. I chat with a local. I ask for a dinner recommendation. And I value that answer over the wisdom of the online crowd every time.
(Available: http://www.chicagotribune.com. Adapted.)
According to the text, apps and phone maps do NOT offer 

Still I Rise  You may write me down in history with your bitter twisted lies, You may trod me in the very dirt But still, like dust, I'll rise. Does my sassiness upset you? Why are you beset with gloom? Cause I walk like I've got oil wells pumping in my living room. Just like moons and like suns, with certainty of tides, Just like hopes springing high, still I'll rise. Did you want to see me broken? Bowed head and lowered eyes? Shoulders falling down like teardrops, weakened by my soulful cries. Does my haughtiness offend you? Don't you take it awful hard, Cause I laugh like I've got gold mines diggin' in my own back yard. You may shoot me with your words, you may cut me with your eyes, You may kill me with your hatefulness, but still, like air, I'll rise Does my sexiness upset you? Does it come as asurprise, That I dance like I've got diamonds at the meeting of my thighs? Out of the huts of history's shame I rise. Up from a past that's rooted in pain I rise. I'm a black ocean, leaping and wide, welling and swelling I bear in the tide. Leaving behind nights of terror and fear I rise. Into a daybreak that's wondrously clear I rise. Bringing the gifts that my ancestors gave, I am the dream and the hope of the slave. I rise  I rise I rise... Maya Angelou (Fonte: <http://www.aaregistry.org/poetry/view/still-i-rise-maya-angelou>. Acesso em: 04/07/2016)

Mais do que nunca a Declaração Universal dos Direitos Humanos tem sido amplamente discutida em vários países, assim como nos EUA e nos Brasil. O Poema de Maya Angelou aborda temáticas da luta afro-americana que também são pautas das lutas dos movimentos sociais brasileiros, dentre as temáticas abordadas no poema estão

Os verbos auxiliares "Should", 'Would" e "Could' são a forma do "past tense” de:

A revolution in communication
When cell phones first became available in the 1980s, they were considered to be expensive playthings for business people. No one thought that they were going to change the world. People knew that the internet had the power to transform lives, but the expectation was that this would happen through the dissemination of personal computers. However, it is now predicted that by 2020, cell phones will have replaced laptops as the main point of access to the internet worldwide. So, why will more people be using cell phones than laptop computers in the future? One reason is that the price of even a fairly cheap laptop makes it inaccessible for a lot of people in developing countries. Computers rely on a regular power supply, which is a problem in many developing countries where outages are frequent, and internet connections unreliable. Cell phones, on the other hand, are cheap to buy (especially recycled ones), require little electricity for recharging, and have good access to the internet in most parts of the world via cell phone networks. It is therefore cell phones, rather than computers, which are revolutionizing life and communication in many developing countries.

How cell phones are transforming the developing world
NextDrop is an app which is now being used in rural parts of India. In many parts of the country, people rely on weekly or twice weekly deliveries of clean water. The problem is that villagers never know exactly when deliveries will take place, meaning that they waste time waiting by their village well for the water tanker to turn up. NextDrop is a simple app that sends automatic text messages to people notifying them when their next water delivery will be. It’s a simple idea which greatly improves people’s lives. Transferring money between countries can be tricky, and this causes problems for the thousands of people who work abroad and need to send money to their families back home. A piece of software called Boom allows Mexicans who work in the US to send money back to family members in Mexico through their cell phones. Once the link is established and the software is installed on both phones, money can be transferred using a simple text message. Cell phones are also bringing health benefits to developing countries. A project called TulaSalud in Guatemala uses cell phone technology to communicate with nurses in remote areas of the country, who are working to reduce the infant mortality rate. The software allows nurses access to their patients’ medical records wherever they are. The service provides free phone numbers that both nurses and patients can call to ask questions about health. Maria Neander is a nurse who works on the TulaSalud project. Before we had TulaSalud, patients’ medical records were only available the health center. When I went into the villages, I couldn’t take the records with me, so I didn’t know if a woman I was visiting had any health problems. Now I have all information I need my cell phone. It helps me monitor women during pregnancy, giving them a better chance of having a healthy baby. When I’m with a woman who is giving birth, I have phone numbers that I can use if there are any problems, so I can get help and advice about what to do. TulaSalud has definitely saved lives.
It’s correct to say that Maria Neander:

A revolution in communication
When cell phones first became available in the 1980s, they were considered to be expensive playthings for business people. No one thought that they were going to change the world. People knew that the internet had the power to transform lives, but the expectation was that this would happen through the dissemination of personal computers. However, it is now predicted that by 2020, cell phones will have replaced laptops as the main point of access to the internet worldwide. So, why will more people be using cell phones than laptop computers in the future? One reason is that the price of even a fairly cheap laptop makes it inaccessible for a lot of people in developing countries. Computers rely on a regular power supply, which is a problem in many developing countries where outages are frequent, and internet connections unreliable. Cell phones, on the other hand, are cheap to buy (especially recycled ones), require little electricity for recharging, and have good access to the internet in most parts of the world via cell phone networks. It is therefore cell phones, rather than computers, which are revolutionizing life and communication in many developing countries.

How cell phones are transforming the developing world
NextDrop is an app which is now being used in rural parts of India. In many parts of the country, people rely on weekly or twice weekly deliveries of clean water. The problem is that villagers never know exactly when deliveries will take place, meaning that they waste time waiting by their village well for the water tanker to turn up. NextDrop is a simple app that sends automatic text messages to people notifying them when their next water delivery will be. It’s a simple idea which greatly improves people’s lives. Transferring money between countries can be tricky, and this causes problems for the thousands of people who work abroad and need to send money to their families back home. A piece of software called Boom allows Mexicans who work in the US to send money back to family members in Mexico through their cell phones. Once the link is established and the software is installed on both phones, money can be transferred using a simple text message. Cell phones are also bringing health benefits to developing countries. A project called TulaSalud in Guatemala uses cell phone technology to communicate with nurses in remote areas of the country, who are working to reduce the infant mortality rate. The software allows nurses access to their patients’ medical records wherever they are. The service provides free phone numbers that both nurses and patients can call to ask questions about health. Maria Neander is a nurse who works on the TulaSalud project. Before we had TulaSalud, patients’ medical records were only available the health center. When I went into the villages, I couldn’t take the records with me, so I didn’t know if a woman I was visiting had any health problems. Now I have all information I need my cell phone. It helps me monitor women during pregnancy, giving them a better chance of having a healthy baby. When I’m with a woman who is giving birth, I have phone numbers that I can use if there are any problems, so I can get help and advice about what to do. TulaSalud has definitely saved lives.
TulaSalud is a project whose purpose is to:

A revolution in communication
When cell phones first became available in the 1980s, they were considered to be expensive playthings for business people. No one thought that they were going to change the world. People knew that the internet had the power to transform lives, but the expectation was that this would happen through the dissemination of personal computers. However, it is now predicted that by 2020, cell phones will have replaced laptops as the main point of access to the internet worldwide. So, why will more people be using cell phones than laptop computers in the future? One reason is that the price of even a fairly cheap laptop makes it inaccessible for a lot of people in developing countries. Computers rely on a regular power supply, which is a problem in many developing countries where outages are frequent, and internet connections unreliable. Cell phones, on the other hand, are cheap to buy (especially recycled ones), require little electricity for recharging, and have good access to the internet in most parts of the world via cell phone networks. It is therefore cell phones, rather than computers, which are revolutionizing life and communication in many developing countries.

How cell phones are transforming the developing world
NextDrop is an app which is now being used in rural parts of India. In many parts of the country, people rely on weekly or twice weekly deliveries of clean water. The problem is that villagers never know exactly when deliveries will take place, meaning that they waste time waiting by their village well for the water tanker to turn up. NextDrop is a simple app that sends automatic text messages to people notifying them when their next water delivery will be. It’s a simple idea which greatly improves people’s lives. Transferring money between countries can be tricky, and this causes problems for the thousands of people who work abroad and need to send money to their families back home. A piece of software called Boom allows Mexicans who work in the US to send money back to family members in Mexico through their cell phones. Once the link is established and the software is installed on both phones, money can be transferred using a simple text message. Cell phones are also bringing health benefits to developing countries. A project called TulaSalud in Guatemala uses cell phone technology to communicate with nurses in remote areas of the country, who are working to reduce the infant mortality rate. The software allows nurses access to their patients’ medical records wherever they are. The service provides free phone numbers that both nurses and patients can call to ask questions about health. Maria Neander is a nurse who works on the TulaSalud project. Before we had TulaSalud, patients’ medical records were only available the health center. When I went into the villages, I couldn’t take the records with me, so I didn’t know if a woman I was visiting had any health problems. Now I have all information I need my cell phone. It helps me monitor women during pregnancy, giving them a better chance of having a healthy baby. When I’m with a woman who is giving birth, I have phone numbers that I can use if there are any problems, so I can get help and advice about what to do. TulaSalud has definitely saved lives.
In the article, the phrase “by 2020, cell phones will have replaced laptops” (1st paragraph) is the same as saying:

Analyze the following statements concerning the text:
I. their, underlined in the first paragraph, refers to “fair wages”.  II. them, underlined in the second paragraph, refers to “workers”.  III. those, underlined in the third paragraph, refers to “unions”.  IV. they, underlined in the fourth paragraph, refers to “politicians”.   The TRUE statements are: 

Executive Secretary     We are looking for a competent Executive Secretary to support high-ranking officials in our company. You will be the one to organize and maintain the executive’s schedule and assist them by performing a variety of administrative tasks.    Executive secretaries must be quick professionals with great time-management and multitasking abilities. It is with their diligence and competence in their work that executives can focus on their managerial responsibilities without worrying for other tasks.    The goal is to contribute to the efficiency of the overall business by ensuring all assigned administrative duties are carried on timely and efficiently.    Responsibilities    - Maintain executive’s agenda and assist in planning appointments, board meetings, conferences, etc; 
- Attend meetings and keep minutes; 
- Receive and screen phone calls and redirect them when appropriate; 
- Handle and prioritize all outgoing or incoming correspondence (e-mail, letters, packages etc.); 
- Make travel arrangements for executives;  Handle confidential documents ensuring they remain secure; 
- Prepare invoices or financial statements and provide assistance in bookkeeping; 
- Monitor office supplies and negotiate terms with suppliers to ensure the most cost-effective orders; 
- Maintain electronic and paper records ensuring information is organized and easily accessible; 
- Conduct research and prepare presentations or reports as assigned.    Requirements    - Proven experience as executive secretary or similar administrative role; 
- Proficient in MS Office and “back-office” software (e.g. ERP); 
- In depth knowledge of office management as well as technical vocabulary of relevant industry; 
- Familiarity with basic research methods and reporting techniques; 
- Excellent organizational and time-management skills; 
- Outstanding communication and negotiation abilities; 
- Integrity and confidentiality; 
- Degree in business administration or relative field.    (Adapted from: https://resources.workable.com/executivesecretary-job-description) 
From the text we can infer that:    I. The required professional will be responsible for    organizing the executive’s agenda. 
II. The person must have some knowledge on accountancy. 
III. The person must be graduated. 

Read the text below and answer the questions that follow:
Brazil's universities take affirmative action
By Julia Carneiro
BBC Brasil, Rio de Janeiro
28August 2013
Antonio Oliveira has benefited from the “quotas” in the first semester since the law came into effect. As a teenager he had to balance his time between school and helping his parents harvest vegetables to sell at a farmer's market, and doing other small jobs to scrape by.
Until recently, he says the only prospects for those growing up in his city, Colinas, were to work with crops or to get a post at the city hall - “a mediocre job that people think is heaven,” as he puts it. But Antonio has just finished his first term studying Economic Sciences at Rio de Janeiro's prestigious Federal University (UFRJ), a dream he had nurtured since his days at a rural public school.
His placement represents a radical change in the Brazilian university system.
Competition for places
Anew law approved a year ago reserves 50% of spots in Brazil's federal universities for students coming from public schools, low-income families and who are of African or indigenous descent. 
“I think this is a life-changing opportunity.I hope I will get a good job after university and be able to give my parents more comfort as they grow old,” said Antonio Oliveira, student.
The number of posts reserved for black, mixed race and indigenous students will vary according to the racial make-up of each Brazilian state.
Ten years ago affirmative action gradually started being adopted in both state and federally funded Brazilian universities, in an attempt to give underprivileged Brazilians better chances of getting free higher education - and thus access to better jobs. Half of Brazil's population is ofAfrican descent, but the country's public universities tend to reflect the Brazilian upper classes - who are mostly white.
Although these universities are free, those who traditionally made it in usually came from expensive private schools. Students from public education - the majority of whom are black or mixed race - were less likely to secure one of the highly competitive places. Now the “quotas” are mandatory in all of Brazil's 59 federal universities, which have until 2016 to reserve half of their positions for affirmative action.
Controversial issue
Antonio Freitas says the country is moving backwards with the quota policies.
But racial quotas have sparked widespread controversy in Brazil. Many who are against them argue that easing access to higher education denies the principle of merit that brings excellence to universities.
“This is bad for the future of Brazil, because the main objective of universities is research, is to achieve quality,” says Antonio Freitas, provost of the Getulio Vargas Foundation, a prestigious private university.
“Eventually you may not have the most qualified people in engineering, in medical school, in the most challenging areas which Brazil needs to develop.” 
Adapted from: <http://www.bbc.com/news/business>
The sentences below provide further information about the studentAntonio Oliveira. Choose the only sentence in which the expression used to refer to his age is correct.

Dear Mayor Estrosi, Mayor Vivoni, Prime Minister Manuel Valls, Former President Nicolas Sarkozy, and other French officials who have supported France’s burkini ban:     My name is Amara Majeed, and I am a 19-yearold Muslim Sri Lankan American. I am a student at Brown University, studying cognitive neuroscience and public policy.
When I look at the photo circulating of a woman in Nice being surrounded by armed police officers as she is coerced into removing her clothing, because French officials deemed the burkini to be inappropriate beach attire, I see infringement on a woman’s right to choose what she puts on her body by a group of white males. I see the scapegoating, ostracization, and criminalization of Muslims in the aftermath of the Nice terror attacks. I am a woman who wears the hijab, and I see an affront to the rights and civil liberties of women like me.
Deputy Mayor of Nice, Christian Estrosi: You have stated that you support this ban on “inappropriate clothing” in the wake of the Nice terror attacks. Mayor Vivoni, you have described the burkini ban as a necessary measure to “protect the population.” Former French president Nicolas Sarkozy, you have labeled the burkini as a symbol of extremism.
Let me respond to all of you by saying this: any conflation of the burkini with terrorism is invalid, virulent, and discriminatory. Tell me, in what way does our way of dress pose a threat to France’s national security? In what way does the burkini propagate hateful, violent ideologies? How is it that our way of dress poses a national security threat, yet some wetsuits, which take on strikingly similar designs to the burkini, aren’t? While France’s highest administrative court has now overturned the ban, the damage has already been done — this attack on the Muslim way of dress only serves as fodder to the already existing rising anti-Muslim sentiment and stigmatization of Muslims in France. If this institutionalized Islamophobia and fearmongering is being perpetrated by French officials and authorities, I fear how the general public’s poor treatment of hijab-clad women may be exacerbated in the coming weeks. We’re all well aware that hate crimes and violence targeting Muslim women wearing the hijab is not a new phenomenon in France.
As one burkini-clad woman who was forced to leave the beach states, “Because people who have nothing to do with my religion have killed, I no longer have the right to go to the beach.” In the eyes of many authority figures, our religious identity in and of itself is incriminating. Our way of dress is incriminating. Our sheer existence is incriminating.
Many of you have called the hijab an emblem of oppression. In April, France’s Minister for Women’s Rights equated women who choose to wear the hijab with “Negroes who were in favor of slavery.” More recently, France’s prime minister stated that the burkini is a tool of “enslavement,” and former French President Sarkozy insinuated that hijabclad women are imprisoned.
I am genuinely tired of individuals like you imposing your brand of colonial feminism on us and telling us that we are oppressed, that we have been indoctrinated, that this was not our choice, and that we need to be unshackled. Instead of continuing to pursue these offensive and failing attempts at liberating us, I implore you to liberate yourselves from this white savior complex and recognize that we don’t need your saving. The hijab does not oppress me. For me, the hijab is a symbol of feminism and freedom of expression — so who are you to invalidate my experiences, to invalidate a fundamental, inextricable aspect of my identity, and to label me as enslaved, as imprisoned, as oppressed? By depriving us of our rights to dress the way we want, by making public spaces inaccessible to us, by publicly humiliating us and coercing us to remove some of our clothing while we are trying to enjoy a day at the beach — you are oppressing us.
My news feed has been saturated with people posting photos of a Muslim woman at a beach being forced to strip, captioned with outrage and vitriol towards this form of discrimination. While your support of our rights is appreciated, I ask that you refrain from doing a disservice to this individual by circulating this photo. It may not seem like you are violating a woman’s privacy and liberties by sharing a picture revealing her arms or shoulders, but it is incumbent upon us to understand that she did not freely choose to show those parts of her body in public. Even if the intent is to excoriate the burkini ban while circulating these photos, I implore you to not be complicit, whether directly or indirectly, in systems of oppression that are stripping women, literally, of their right to choose what they wear. Yours truly,
Amara Majeed – a muslin woman (Source: http://www.bustle.com/articles/180721-an-open-letter-tofrench-officials-who-support-the-burkini-ban-from-a-muslim-woman)
Observe the following excerpt: “In the eyes of many authority figures, our religious identity in and of itself is incriminating. Our way of dress is incriminating. Our sheer existence is incriminating”. Considering the sentences above, mark the alternative that best describes the usage of the word “sheer” in the context above. 

Google Doodle celebrates Franz Kafka’s 130th birthday with ‘The Metamorphosis’ tribute Google has created a ‘doodle’ in tribute to Franz Kafka on the 130th anniversary of the German-language novelist’s birth.
The doodle is based on Kafka’s 1915 novella ‘The Metamorphosis’ – considered by many to be one of the most important works of fiction of the 20th Century – and shows the character Gregor Samsa walking into a room in the guise of a large insect.
In the much-celebrated work, Samsa is a travelling salesman who transforms into an insect overnight. The rest of novella focuses on his struggle to come to terms with his new existence and the burden it places on his family.
Kafka was born into an Ashkenazi Jewish family on 3 July 1883 in Prague, which was then part of the Austro-Hungarian Empire.
He originally trained as a lawyer but began writing short stories in his spare time - eventually coming to consider it his calling – despite only a handful of his works being published during his lifetime.
Regarded as one of the 20th Century’s most influential authors, Kafka’s works are dominated by unreliable narrators who often tell dark tales of existentialist difficulties.
Kafka’s notoriously difficult relationship with his father Hermann is believed to have strongly influenced his work – with The Metamorphosis itself thought to be based upon Kafka’s own fears of insignificance and repulsiveness to his own family.
From: HALL, John. Available at: <http://www.independent.co.uk/life-style/gadgets-and-tech/news/google-doodlecelebrates-franz-kafkas-130th-birthday-with-the-metamorphosis-tribute-8685557.html>.
In the two excerpts “one of the most important works of fiction of the 20th century” and “one of the 20th Century’s most influential authors”, it can be verified superlative adjectives. It is another case of superlative adjective: 

The underlined word, in the following sentence:’ don’t use up natural resources or harm the environment.’, has its correct synonym in which alternative?

Choose the alternative that presents the correct words to complete the missing ones in the text.

The words in bold in the following sentence: ”…preferred heating and cooking with wood.”, are being used as examples of:

Dadas as sentenças: Until scientists started talking about global warming, most people hadn’t known much about the damage their cars and industries were causing. When the price of gasoline becomes enough expensive, Brazilians can fill their cars with ethanol. In the next few years, we’ll have to come up with new sources of energy to replace the harmful ones we have now. Europeans has used coal as their primary source of energy until inventors and scientists found new solutions. Assinale a alternativa que indica todas as afirmativas corretas.