－Is the man on the playground your Engli...

－Is the man on the playground your English teacher? －It _________ be him. He has gone home.

A. mustn’t B. can’t

C. needn’t D. couldn’t

B 【解析】试题分析：句意：－在操场上的那个人是你的英语老师吗？－不可能是他。他已经回家了。A. mustn’t不可以；B. can’t不可能；C. needn’t不必；D. couldn’t不能。表示对现在的否定推测用can’t。根据语境可知选B。考点: 考查情态动词的用法。

考点分析：

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