Tom ____ have kept his word. I wonder why he changed his mind.A. must B
题型：不详难度：来源：
Tom ____ have kept his word. I wonder why he changed his mind.
A. must B. should C. need D would |
答案
| B |
解析
试题分析：考查情态动词和虚拟语气。句意：汤姆本应该遵守承诺的。我想知道他为什么改变主意。must have done一定已经做了某事；should have done本应该做某事；need have done本来需要做某事；would have done用于对过去事情的虚拟。根据句意可知，是汤姆没有遵守承诺，用should表示“本应该”的意思。故选B。 |
举一反三
______, there would be no point arguing any longer.| A．Was that true | B．If that was true | C．Should that be true | D．Could that be true |
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—I didn’t know your telephone number in Paris; otherwise, I ______ you.
—Oh, I would rather you ______ me.| A．would have called; had called | B．would ring; call | | C．would have called; called | D．would ring; had called |
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My English teacher insisted that the exercises ____very difficult and that we ____them carefully.| A．were; must finish | B．be; finish | | C．were; finish | D．be; finished |
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The professor ________at 8 o’clock，but he has not shown up yet，which worries all of us.| A．was supposed to arrive | B．must have arrived | | C．might have arrived | D．was supposed arriving |
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| A．thought | B．would think | C．had thought | D．have thought |
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