— The terrible accident is under investigation．— Actually, quicker action _____
题型：不详难度：来源：
— The terrible accident is under investigation．
— Actually, quicker action _____ those workers trapped in the mine．| A．might have saved | B．must have saved | | C．should have saved | D．could have saved |
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答案
| D |
解析
| 考查情态动词及虚拟语气。might have done 对过去可能性的推测，must have done对过去肯定的推测，should have done本应该做某事，实际上没有做，could have done本可以做某事，实际上没做，根据句意更快的行动本可以救那些困在矿中的工人的。所以选D。 |
举一反三
——Yesterday, I didn’t see Ben at the party.
—— You _____ him. We just came back from Beijing this morning. | A．mustn’t have seen | B．needn’t have seen | | C．couldn’t see | D．can’t have seen |
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---- Is it good to look up every new word when I come across it in reading?
---- No. You ________, because you are likely to guess the meaning from the context.| A．can’t | B．mustn’t | C．don’t have to | D．shouldn’t |
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---- There’s no light on. ---- They ________ be at home.| A．can’t | B．mustn’t | C．needn’t | D．oughtn’t to |
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They didn’t turn up at the meeting yesterday. Otherwise, they _________ the report. | A．had listened to | B．would listen to | | C．should listen to | D．would have listened to |
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---Was the teacher strict?
---Yes. He requested that we ________ television on week nights.| A．didn’t watch | B．must not watch | C．not watch | D．have not watched |
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