我听到有人在敲门。

I heard someone knock at the door.

有人在敲门。

There's someone knocking on/at the door.

有人在敲门，我去开。

Somebody's knocking at the door. I'll answer it.

你听见有人在敲门吗？

I heard him knock at the door three times.

有人在敲门你听见了吗？

Do you hear someone knock at the door? (Someone knocked at the door just now. )

听！有人在敲门。 铛。

Listen! ! Someone is knocking at the door.

她刚起来，就有人在敲门

She wakes up, knock knock knock on the door

你听见有人在敲门了吗?。

Did you hear the door?

有人在敲门，她会大发脾气的。

Somebodys knocking at the door . i ll answer it.

有人在敲门。

Someone is tapping on the door.