According to western culture, you______ask a woman her age; it is impolite.
A．needn't
B．don't have to
C．mustn't
D．have not got to

A.
A．needn't
B．don't
B.mustn't
D．have

【参考答案】

C
本题考查情态动词mustn’t和needn’t语义的区别，mustn’t表示'禁止，不可以'；needn’t......

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