She must be in the classroom ?A. isn’t sheB. mustn’t sheC. can’ t sheD. does she

问题补充：

She must be in the classroom, ?

A. isn’t she

B. mustn’t she

C. can’ t she

D. does she

答案：

(答案→)A. isn’t she

B. mustn’t she

C. can’ t she

D. does she

解析：考查反义疑问句。陈述部分有must 的疑问句，疑问部分根据实际情况而定。She是单数第三人称，前文为肯定，故选A。