When I was walk on the street,I saw a plane_____over my head.

问题描述:

When I was walk on the street,I saw a plane_____over my head.
空里面应该填什么?
A.flying
B.flies
C.fly
D.flew
谢谢喽````

A.
可以填的答案是A和C
这个句子的谓语是saw
一般来说有这样的结构see something do/doing something.所以排除掉BD
当强调正在的时候,用进行时;在这里用fly就显得没有flying生动,因为飞机是正在飞的:)