超星 - Unit 10 10.2 - 查题吧

单选题

——Is John coming by train?——He should, but he ______ not.

A. must
B. can
C. need
D. may

单选题

You have already tried your best, so you ______ worry about the matter.

A. can't
B. needn't
C. mustn't
D. couldn't

单选题

The fire spread through the building very quickly but everyone ______ get out.

A. had to
B. would
C. could
D. was able to

单选题

Please don't make so much noise. I ______ hear the speaker very well.

A. needn't
B. can't
C. shouldn't
D. mustn't

单选题

——Let's climb to the top of the tower.——You _____ be joking! I've been afraid of high places since I was a kid.

A. should
B. may
C. can
D. must

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