超星 - Unit 3 Grammar Exercise - 查题吧

单选题

She was deeply troubled and you ________ her about it.

A. shouldn't have told
B. dare not tell
C. can't have told
D. wouldn't have told

单选题

You ________ alcohol(酒) when you drive.

A. needn't drink
B. mustn't drink
C. shouldn't have drunk
D. won't have drunk

单选题

I told him I was very sorry for what had happened and admitted I ________ that joke.

A. can't have made
B. needn't have made
C. shouldn't have made
D. won't have made

单选题

Tom is only four years old; I ________ leave him alone at home.

A. dare
B. daren't
C. dare to
D. daren't to

单选题

He says he's 21 but he ________ be older than 18.

A. can
B. can't
C. wouldn't
D. could

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