题目内容
从所给的四个选项中选择最佳答案
He must have taught in that school for a long time, ______?
[ ]
A.mustn't he B.hasn't he C.wasn't he D.did he
答案:B
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题目内容
从所给的四个选项中选择最佳答案
He must have taught in that school for a long time, ______?
[ ]
A.mustn't he B.hasn't he C.wasn't he D.did he