是“I saw an old man fall down”还是“I saw an old man fell down”已看到摔倒的全过程

分类: 作业答案 • 2021-12-19 16:19:46

问题描述：

是“I saw an old man fall down”还是“I saw an old man fell down”
已看到摔倒的全过程

答

I saw an old man fall down

答

see sb do\doing sth 所以是I saw an old man fall down

答

I saw an old man fall down
因为固定搭配：see sb do /see sb doing