您的位置: 首页  >  作业答案  >  英语  >  I saw him___his homework when I passed by last night,but I'm not sure whether he__.

I saw him___his homework when I passed by last night,but I'm not sure whether he__.

分类: 作业答案 • 2021-12-28 16:12:24
问题描述：

I saw him___his homework when I passed by last night,but I'm not sure whether he__.
A.doing;has finished
B.doing;have finished
C.do;has finished
D.do;have finished原因、、、

答

A
某一时刻正在做的事,进行时.
三单完成时,has

相关推荐