题目内容
---Must I come at four o'clock?
---Oh, no, you ______.
- A.don't
- B.mustn't
- C.don't have to
- D.can't
C
用must提问时,否定回答要用needn't或don't have to,而不用mustn't.
用must提问时,否定回答要用needn't或don't have to,而不用mustn't.
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