I saw her ______ her homework in the classroom just now.Where is Maria?I saw her _______her homework in the classroom just now.A.do B.did C.to do D.doing我认为应该是doing,而答案是do.
问题描述：
I saw her ______ her homework in the classroom just now.
Where is Maria?
I saw her _______her homework in the classroom just now.
A.do B.did C.to do D.doing
我认为应该是doing,而答案是do.
答
因为是just now ,如果是now，就用doing.
答
首先see的用法有see sb do与see sb doing
前者是看见某人做什么的意思，表示看见那个事情的整个过程；后者是看见某人正在做什么的意思，表示该事情正在进行。
答
D看见某人正在做某事,SEE SB DOING STH
答
see sb. do sth. 就是A