29.---John, how did your English exam go?---I thought I ____, but in fact I came

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29.---John, how did your English exam go?
---I thought I ____, but in fact I came in the top 10% in the class.

A．should have failed	B．couldn’ t have failed
C．might have failed	D．mustn’ t have failed

答案

解析

略

举一反三

.The teacher demanded that our examination paper _____handed in at once .
A be B must be C would be D had to be

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--- ______ I call him back since you are in such poor health?
--- No, you needn’t. I’d rather he ______ disturbed.

A． May; shouldn’t be	B． Shall; weren’t
C． Should; hadn’t been	D． Shall; wasn’t

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What a pity! I ______ in Hainan two more days, but something urgent needed to be dealt with back home.

A． must have stayed	B． needn’t have stayed
C． may have stayed	D． could have stayed

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26.She ____ the hospital so soon, for she has not yet recovered.

A．wouldn’t have left	B．shouldn’t have left
C．mustn’t have left	D．hadn’t had left

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30.They ______ be at home. You see, the door is locked from the outside.

A．can’t

B．may

C． must

D． mustn’t

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