Mom starts cleaning the room.

妈妈开始打扫房间。

I found him cleaning the room.

我发现他正在打扫房间。

How must Amy cleaning the room?

为什么艾米必须清洁房间？

Mr Li must be cleaning the room.

李先生肯定在打扫房间呢。

She isn't cleaning the room now.

她现在不在打扫房间。

We alternate in cleaning the room.

我们轮流打扫房间。

Are you through cleaning the room?

你打扫完房间了吗？

Mike is cleaning the room.

迈克正在打扫房间。

Is she cleaning the room?

她正在打扫房间吗？

They can't be cleaning the room now.

他们现在不可能在打扫房间。

His grandmother is cleaning the room.

他的祖母正在打扫房间。

When did you finish cleaning the room?

你什么时候打扫完屋子的?。

The girl has set about cleaning the room.

小女孩已开始打扫房间。

When I came in, he was cleaning the room.

当我走进来的时候，他正在打扫房间。

Thanks for helping with cleaning the room.

谢谢你帮忙打扫房间。

My mother spends all day cleaning the room.

我妈妈花费一整天的时间打扫房间。

He listened to music while cleaning the room.

他一边打扫房间一边听音乐。

Somebody was cleaning the room when I arrived.

当我到达的时候，某人正在打扫房间。

I'll finish cleaning the room as soon as I can.

我会尽可能快地把房间打扫完。

I have been cleaning the room since I got home.

我到家后一直在打扫房间。

Li Ming or his classmates are cleaning the room.

李明或者是他的同班同学在打扫房间。

He was cleaning the room when I went to see him.

当我去看他时，他在打扫房间。

Was he cleaning the room at this time yesterday?

昨天这个时间他是在打扫房间吗？

He listened to the music while cleaning the room.

他一边打扫房间一边听音乐。

Cleaning the room will not take long if we all help.

如果我们帮忙的话，打扫房间不会花很久的时间。

The girl attendant has set about cleaning the room.

那位女服务员已开始打扫房间。

He listened to music while I was cleaning the room.

我打扫房间时，他在听音乐。

He listened to the music while I was cleaning the room.

我打扫房间时他在听音乐。

The father rewarded the little boy for cleaning the room.

小男孩因为打扫了房间而受到父亲的奖励。