We must try our best to the river being polluted any more.A．separateB．keepC．preventD．guard-高中英语-n多题

◎ 题干

We must try our best to the river being polluted any more.

A．separate

B．keep

C．prevent

D．guard

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◎ 解析

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◎ 知识点

根据n多题专家分析，试题“We must try our best to the river being polluted any more.A．separateB．keepC．preventD．guard…”主要考查了你对【一般现在时】，【一般现在时的被动语态】等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。

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