Question

【题目】—Is that your teacher?

—That ________ be Mr.Wang.He has gone to Canada with his wife.

A. can't B. mustn't

C. can D. must

Answer 1

【答案】A

【解析】

句意：-那是你的老师吗？-那不可能是王老师，他和他的妻子去了加拿大。can’t不可能；mustn’t禁止，不要；can可能；must必须；一定。根据答语He has gone to Canada with his wife.可知。那不可能是王老师，故应用can't，选A。