[题目]We must do everything we can waste water from running into rivers.A. prevent B. prevented C. preventing D. to prevent 题目和参考答案——青夏教育精英家教网——

题目内容

【题目】We must do everything we can ______ waste water from running into rivers.

A. prevent B. prevented C. preventing D. to prevent

【答案】D

【解析】句意：我们必须做我们能做的一切，来阻止废水流入河里。不定式做状语，表示目的；故选D

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