改句子：The policeman which caught the thief is my father.
What is the name of the boy who brother are a doctor?
Mianyang is a beautiful city what attracts of tourists each year.
The man whom gave us a talk on science yesterday is a famous scientist.
She is no longer the girl whom was ten years ago.
He has a friend who play the piano very well.
I like the bike when looks very beautiful.
I'd like a room which window face the sea.
I'll never forget the day on where I joining the army.
These are robots that look like people.