If we keep polluting our planet, ___________________________________. A. many ...

★ First Conditional Sentence

If we keep polluting our planet, ___________________________________.

A. many animal species will become extinct

B. many animal species become extinct

C. many animal species became extinct

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If they do the homework,

A. I would take them to the movies.

B. I take them to the movies.

C. I will take them to the movies.

D. I took them to the movies.