题目内容
【题目】—Is Professor Smith giving the speech today?
—It ____________ be him. He is abroad right now.
A. needn’t B. can’t
C. wouldn’t D. mustn’t
【答案】B
【解析】B考查情态动词。句意:——史密斯教授今天做演讲吗?——那是不可能的,他现在在国外。A. needn't不必;B. can't 不可能;C. wouldn’t将不;D. mustn't禁止。这里根据He is abroad right now.所以确定不可能是他,故选B。
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