21.She must have arrived there last night ,_______ (do/have/need/must)she 这句话的疑问句怎么填

分类: 作业答案 • 2021-12-18 22:53:51

问题描述：

21.She must have arrived there last night ,_______ (do/have/need/must)she
这句话的疑问句怎么填

答

have

答

我觉得应该是did可没这个选项

答

填didn't,Must在这里表推测,由时间状语可知是对过去的推测.

答

didn't she?
因为这里有了明显的表过去式的词，last night,用过去式