我的妈妈正在做饭与此同时我的爸爸在读书。

My mother was cooking while my father was reading.

youdao

我起来的时候，妈妈正在做饭。

When I got up, my mother was cooking.

youdao

我起来的时候，妈妈正在做饭。

When I got up, my mother was cooking.

youdao