I saw her play when I was eight.若改为I saw her playing.后面应是什么?

题目

I saw her play when I was eight.若改为I saw her playing.后面应是什么?

答案

I saw her playing when I came into the room.
就是说要加时间点的状语,不能用我8岁时,这样一段时间的状语了.
如果还有问题,可以问我,