问题
选择题
You ______ smoke. You are only 14 and it isn't allowed. [ ]
A. mustn't
B. don't have to
C. needn't
D. won't
答案
答案：A
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You ______ smoke. You are only 14 and it isn't allowed. [ ]
A. mustn't
B. don't have to
C. needn't
D. won't
答案：A