mary is hard-working,she----------her lesson from 7to10 last night.Ahas been doingBhad doneCdidDwas

分类: 作业答案 • 2021-11-25 09:33:11

问题描述：

mary is hard-working,she----------her lesson from 7to10 last night.Ahas been doingBhad doneCdidDwas
Dwas doing

答

D
Mary is hard-working,she (was doing) her lesson from 7 to 10 last night.
过去的某段时间内正在进行的事,用过去进行时.但跟现在没关系