He must have watched the TV play the other day,A mustn't B didn't he C haven't he D did he

问题描述:

He must have watched the TV play the other day,A mustn't B didn't he C haven't he D did he
翻译疑问句

选B
情态动词+have done 表示对过去事情的猜测 例如 must have done是对过去事情的肯定猜测 所以回答用过去式