You worry about me. I'm fine. [ ]A. can't B. mustn'tC. needn't——青夏教育精英家教网——

You ______ worry about me. I'm fine.

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

—Whose schoolbag is this?
—It _______ be Mary's. It has her name on it.

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

—Look at the sign!
—Oh, I see. We ______ waste water.

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

_______ you wait a few more minutes? It'll be your turn soon.

A. Must
B. Should
C. Could
D. Might

—Is that Mr Li under the tree?
—No, it ______ be him. He's in the office now.

A. can't
B. mustn't
C. might
D. must

—Can you come to my party on Wednesday?
—Sorry, I can't. I _______ finish my homework.

A. may
B. would
C. have to

According to the new traffic laws, people _______ drive after drinking wine or beer.

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

—Dad, may I watch TV?
－No, you can't. You _______ finish your homework first.

A. must
B. can
C. may

—That must be Mr. John.
—No, it ______ be him. I saw him off at the airport half an hour ago.

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

The students be in the classroom because there are lights in it.

A. can
B. must
C. can't
D. mustn't

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