---Did they have a good time at the party?---Judging by their smiles, they _____
题型：不详难度：来源：
---Did they have a good time at the party?
---Judging by their smiles, they _________ have enjoyed themselves.| A．might | B．must | C．could | D．would |
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答案
| B |
解析
| 考查情态动词用法。Might have done 也许做了某事；must have done一定做了某事；could have done本可以做却未做；would have done会做某事；句意：—在聚会上你玩的开心吗？—从他们的微笑来看，他们一定完的很开心。 |
举一反三
Oh, I’m not feeling well in the stomach. I _________ so much mushroom this morning.| A．shouldn’ t eat | B．musn’t have eaten | C．mustn’t eat | D．shouldn’t have eaten |
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I ________ like boiled water, but now I love it.| A．would | B．used to | C．wouldn’t | D．didn’t use to |
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It’s quite warm here; we __________turn the heating on yet.| A．couldn’t | B．mustn’t | C．needn’t | D．wouldn’t |
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— No wonder you caught a cold. You __________ out last night without a coat.
— I know how silly I was.| A．should have gone | B．shouldn’t have gone | | C．can’t have gone | D．mustn’t have gone |
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| A traffic regulation released in a foreign country states that passengers sharing a car with a drunken driver _____ be punished together with the driver himself. |
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