She must have missed the lecture yesterday ( )反义疑问句求解释

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She must have missed the lecture yesterday ( )反义疑问句求解释
She must have missed the lecture yesterday ( )反义疑问句
求解释

She must have missed the lecture yesterday ( )反义疑问句求解释
didn't she

did't she?
当must表推测时,对其后的动词提问,有过去的时间用过去式,若无直接对have提问。

didn't she