I was doing homework when I saw the news on TV.

当我通过电视看见到新闻时，我正在做家庭作业。

youdao

I was bawled out at school for not doing my homework.

我因为没做家庭作业在学校被训了一顿。

《柯林斯英汉双解大词典》

While they were doing their homework, I was doing the laundry.

他们在做家庭作业的时候，我正在洗衣服。

youdao

This was brought out in recent research by economists at the Resolution Foundation (you see I have been doing my homework....) It found that higher unemployment was now having a much greater "chilling effect" on wages than in the past.

BBC: Living wage: Is there such a thing as a free pay rise?