you smoke.A:must B:doesn't C:needn't D:mus
问题描述：
you smoke.A:must B:doesn't C:needn't D:mus
you smoke.A:must B:doesn't C:needn't D:mustn't
答
正确答案：D
分析：mustn't 表示“不必不要；切忌”
must表示肯定,意思是“必须”
needn't 意思是“没有必要”
翻译：你务必不要吸烟