Have all the rooms burnt down?

所有的房间都被烧毁了吗？

Your house has just burnt down.

你的房子刚被烧毁。

The cinema burnt down last year.

电影院去年被烧毁了。

A house in your city burnt down.

你们镇上一座房子被烧毁了。

The house had burnt down when the firemen arrived.

消防队赶到的时候，房子已经烧毁了。