摘要： such heavy pollution already, it may now be too late to clean up the river. A.Having suffered B.Suffering C.To suffer D.Suffered 解析:答案为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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________ such heavy pollution already, it may now be too late to clean up the river．
- A.Having suffered
- B.Suffering
- C.To suffer
- D.Suffered
_____such heavy pollution already, it may now be too late to clean up the river.
A. Having suffered B. Suffering C. To suffer D. Suffered
查看习题详情和答案>>_______ such heavy pollution already, it may now be too late to clean up the river.
A. Having suffered B. Suffering C. To suffer D. Suffered
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