_____such heavy pollution already, it may now be too late to clean up the river. A. Having sufferedB

题目简介

_____such heavy pollution already, it may now be too late to clean up the river. A. Having sufferedB

题目详情


_____such heavy pollution already, it may now be too late to clean up the river.
A. Having sufferedB.SufferingC.To sufferD.Suffered
题型:单选题难度:偏易来源:不详

答案

A
本题考查分词短语作状语的用法。分词作状语,其逻辑主语必须是句子的主语,而本句的主语看似是it,其实它为形式主语,真正的主语为不定式,而不定式省略了逻辑主语for people,所以应用现在分词,又因already,应用完成时。

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