30．—Peter looked tired and a little absent-minded at the meeting． —He _____ up t

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30．—Peter looked tired and a little absent-minded at the meeting．
—He _____ up too late．

A．may stay	B．could stay
C．should have stayed	D．must have stayed

答案

解析

略

举一反三

17. I really _____ thank you enough. It’s been an amazing day.

A．needn’t

B．should

C．must

D．Cannot

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18. ----- Has Mary finished writing her article ?
----- No, and it _____ before class was over.

A．should be finished	B．should finish
C．should have finished	D．ought to have been finished

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24．—Guess what! I have got A for my term paper.
—Great! You _______ read widely and put a lot of work into it.

A．must

B．should

C．must have

D．should have

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25．His suggestion_______to see the film Avatar interested every one of us.

A．that we go

B．which we should go

C．that we would go

D．we should go

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28．— Is Mike going there by bus?
— He ought to, but he ________ not. He likes riding his bike.

A．must

B．may

C．need

D．Can

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