Questões de assuntos semelhantes

• "By 1996, with the establishment of new federal standards of air pollutants, tetraethyl ______________ to gasoline in the U.S." is suitably filled...
• Which sentence correctly uses a causative structure in a natural way?
• Check the item that CORRECTLY fills in the gaps from the text:
• The sentence that presents the verb form in the passive voice is: 
• Which option correctly rewrites the sentence below in the active voice, clearly identifying the subject performing the action?"The crystal, which...