题目内容

You had better ________ your hair cut.

A. had
B. have
C. to get
D. to have

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I ________ go to bed until I ________ finished my work.

A. don’t; had
B. didn’t; have
C. didn’t; had
D. don’t; have

You ______ drink it, it is poisonous.

A. can’t
B. needn’t
C. may not
D. mustn’t

The line is busy. Someone _______ telephone.

A. must be using
B. must have used
C. should be using
D. should have used

I _______ the League for 5 years so far.

A. joined
B. have joined
C. have been in
D. have taken part in

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