他正在做他的家庭作业。

He is doing his homework.

youdao

他一贯在做他的家庭作业。

He has found itself doing his homework.

youdao

他正在做他的家庭作业吗？

Is he doing his homework?

youdao

他没有正在做他的作业。

He is not doing his homework.

youdao

他妈妈在做家务活的时候，他在做作业。

He was doing his homework as his mother was doing her housework.

youdao

他妈妈在做家务活的时候，他在做作业。

He was doing his homework as his mother was doing her housework.

youdao