Correct each sentence

Correct each sentence. Do dot change the underlined words. What do you mean here?

1. When he was a child he wanted to become the an actor.
2. A library is a place where they keep the books and newspapers.
3. It takes me an hour to get to the swimming pool.
4. She has got grey eyes and a dark hair.
5. They had/bought got a little house in the country ten years ago.
6. I think she has a party next Sunday.
7. I don't have the a sister.
8. They hadn't didn't have any dictation yesterday.
9. It There is a mistake in the dictation.
10. I haven't never been to London.? So is my Granny hasn`t been there too.