题目内容

61.[2002北京] I heard they went skiing in the mountains last winter.

It ________ true because there was little snow there.

A. may not be              B. won't be     

C. couldn't be              D. mustn't be

 

答案:C
提示:

题目考察对过去所发生事情的否定性推测结构——could not do / can’t have done

 


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