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---Is Professer Smith giving the speech today?
---It ________ be him. He is abroad right now.


  1. A.
    mustn't
  2. B.
    needn't
  3. C.
    won't
  4. D.
    can't
D
试题分析: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。mustn't禁止;         needn't不必;won't将不;can't 不可能。这里根据He is abroad right now.所以确定不可能是他,故选D。
考点:考查情态动词的用法。
点评:本题难度适中。情态动词是高中阶段的重难点之一,需要考生熟记它们的用法,在各类考试中经常出现,它主要用于表示对各种情况进行推测或责备等。
即学即练:—Dad, would you buy me an MP3 player if I do well in the final exam
—I ________, I promise.
A.would             B.shall        C.should       D.will
解析:D。句意:will可用来表达意愿,本句的语义环境为:如果你考得好,我愿意给你买部MP3。故选D。
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