反意疑问句You must have seen the play last week,____you 同题...是haven't还是 didn't?

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反意疑问句You must have seen the play last week,____you 同题...是haven't还是 didn't?

反意疑问句You must have seen the play last week,____you 同题...是haven't还是 didn't?
反意疑问句You must have seen the play last week,____you
同题...
是haven't还是 didn't?

反意疑问句You must have seen the play last week,____you 同题...是haven't还是 didn't?
20) must在表"推测"时,根据其推测的情况来确定反意疑问句.
He must be there now,isn't he?
It must be going to rain tomorrow,won't it?
所以这里应该用didn't