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You____Tom at the party yesterday;he wen...

You____Tom at the party yesterday;he went abroad for a holiday last week.

A.should have seen

B.might have seen

C.mustn’t have seen

D.couldn’t have seen

 

D 【解析】 试题分析:句意:你昨天可能没有见到汤姆,他上周就去国外度假去了。(1)、“must + have + 过去分词”表示对过去发生的事情或状态进行推测,语气比较坚定,通常只用于肯定句。如: It must have rained last night, for the ground is wet.  You must have been mad to speak to the servant.  (2)、“can / could + have + 过去分词”表示对过去某种情况的怀疑或不确定。can和could一般用于否定句和疑问句,could的语气较can弱。如: I didn't see her at the meeting this morning; she can't / couldn't have spoken at the meeting. He can't have finished the work so soon.  (3)、“may / might + have + 过去分词”表示对已发生的动作或存在的状态进行不肯定的推测,might的语气比may弱一点。这种结构主要用于肯定句和否定句,疑问句改用can或could。如: They may not have known it beforehand. You might have read about it in the papers. (4)、“should / ought to + have + 过去分词”表示过去本该做某事但没做,其否定式表示过去不该做某事但做了,这种句式含有不满或责备之意,ought to的语气比should强一些。如: You ought to / should have studied harder. 你本应该更努力学习的。(但没有) He oughtn't to / shouldn't have done that. 他本来就不该做那件事。(可是做了) 考点:考查情态动词+have done的用法
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