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Questões por página:
The sentence “She drives her car every day”, in negative form, is:

Considere the sentence below:


“Our classes begin at nine.”


The verb tense is:

Considere the sentence below:

“A serious problem has ________.”

The right alternative to fill the blank is:
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The word “worse”, in “this is likely to be worse in the tropical regions of the world” means, in Portuguese:
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In the text, the word “”greenhouse”, in “greenhouse gas emissions”, means, in Portuguese: