题目内容
--Do you have to leave now?
--I am very sorry, but I really ________.
- A.can't
- B.have
- C.should
- D.must
D
回答have to的疑问句用must做肯定回答。
回答have to的疑问句用must做肯定回答。
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题目内容
--Do you have to leave now?
--I am very sorry, but I really ________.