【題目】We must do whatever we can _____ the river _____ any more.

A. to keep; polluted B. to prevent; being polluted

C. keep; polluted D. prevent; being polluted

【答案】B

【解析】

試題分析：考查動詞短語辨析。句意：我們必須盡我們所能去阻止這條河流再被污染。Do whatever we can to do 做我們所能做的去做某事，prevent sb from doing阻止某人做某事，故選B項(xiàng)。

考點(diǎn) : 考查動詞短語辨析

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