过去式后为什么还有doingFor exampleI saw her ? out when I was walking past.A going B to goC wentD go答案是A? 为什么?

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过去式后为什么还有doingFor exampleI saw her ? out when I was walking past.A going  B to goC wentD go答案是A? 为什么?

过去式后为什么还有doingFor exampleI saw her ? out when I was walking past.A going B to goC wentD go答案是A? 为什么?
过去式后为什么还有doing
For example
I saw her ? out when I was walking past.
A going
B to go
C went
D go
答案是A? 为什么?

过去式后为什么还有doingFor exampleI saw her ? out when I was walking past.A going B to goC wentD go答案是A? 为什么?
固定用法:see sb doing sth,表示动作正在进行,see sb do sth 表示动作已结束,在这里是指动作正在进行'当我经过的时候看见她正出去',故A对

前后时态一致啊,都是过去进行时。

when通常和连续性动词连用,后面一般接的是进行时,尤其是一般用于过去的时态。

see sb doing sth