题目内容

---Must I wait for you here now?

---No, you ______. You may be back in half an hour.


  1. A.
    don't have to
  2. B.
    mustn't
  3. C.
    can't
  4. D.
    shouldn't
A
对must开头的一般疑问句,要用needn't或don't have to来回答。
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