题目内容
【题目】It ________ be the postman at the door. It's only six o'clock.
A. mustn't B. can't
C. won't D. needn't
【答案】B
【解析】
D [考查虚拟语气。句意:不可能是邮递员在门口,才六点钟呢。mustn't 禁止,不允许;can't 不可能;won't 不愿意,就是不,偏不;needn't 不需要。]
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题目内容
【题目】It ________ be the postman at the door. It's only six o'clock.
A. mustn't B. can't
C. won't D. needn't
【答案】B
【解析】
D [考查虚拟语气。句意:不可能是邮递员在门口,才六点钟呢。mustn't 禁止,不允许;can't 不可能;won't 不愿意,就是不,偏不;needn't 不需要。]