题目内容

---Must I go to medical school and be doctor like you，Dad？
--- No, you __________, son. You’re free to make your own decision.
A．can’tB．mustn’t C．shouldn’t D．don’t have to
D

试题分析：句意：爸爸，我必须上卫校和你一样当医生吗？不，不是的，儿子，你可以自由做决定。must的含义是必须一定，其否定形式mustn’t表示禁止的含义。故must的否定回答一般借助于needn’和don’t have to来构成。结合语境可知选D。
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