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英语
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we must do everything we can ( ) waste water from running into the rivers.
A.keep B.kept C.to keep D.keeping
要说明理由,
人气:286 ℃ 时间:2020-04-04 07:57:16
解答
很显然是 C 啦 to keep 表目的状语啦
我们必须做我们能为能够做的一切 来防止水土流失
“防止水土流失”是目的啦
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