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    精英家教网 > 初中英语 > 题目详情

    【题目】If people________polluting the air, animals and plants will die soon.

    A. didn't stop B. don't stop C. haven't stopped D. shall not stop

    【答案】B

    【解析】

    句意：如果人们不停止污染空气，动植物很快就会死去。考查一般现在时。由题干可知本句是if引导的条件状语从句，主句用一般将来时，从句用一般现在时表示将来。结合选项可知B选项符合题意，故答案选B。

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