门朝北的那栋房子是汤姆的。
The house whose door faces the north is Tom 's.
他们住的是一所门朝北的房子。
They live in a house , the door of which faces the north .
他住的房子门是朝北开的。
He lives in a house , whose door opens to the north .
他们所住房屋的门是朝北开的。
They live in a house , the door of which opens to the north .
门朝北