Question

help
Exercise 4
заранее спасибо

Answer 1

3. That's Jane's skate. 
4. John is at his cousins' house.
5. Have you got Mark's MP3 player?
6. The dog's ball is under the tree.
7. What's Maria's phone number?
8. Where are the students' books?
9. These are Peter's pens.
10. That's my grandparents' house.