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3.-Is Pro.Smith giving the speech today?
-It ___________ be him.He is abroad right now.(  )
A.won'tB.needn'tC.can'tD.mustn't

分析 --史密斯教授今天做报告吗?
--不可能是他.他此刻在国外.

解答 答案是C.本题考查情态动词辨析;won't不会;needn't不必;can't不可能;mustn't禁止;根据下文"He is abroad right now.(他此刻在国外)"推断"不可能"是他做报告,所以答案选择C.

点评 要在正确理解情态动词的基本含义的基础上,整体理解语境中的情感态度,做出合理的判断.

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