English pronouns

Find the correct pronoun
1. want to travel to Spain in car.
2. It's not your car, it's .
3. These books are .
4. Do you want to come with ?
5. Give a cake, please.
6. Can help you ?
7. can't find book.
8. Hi, it's !
9. children are leaving for school.
10. The house is . It's house.