6. Peter is at this aunt/ aunt's house.

7. Is this Peter's / Peters' house?

8. What is your dog / dog's name?

9. My dad's / dad car is very nice.

10. My brothers' / brother names are Frank and Fred.

11. Do you like Tom and Mary's /Tom's and Mary's house?

12. My friend's / friends father is a doctor.

13. My grandfather's /grandfathers' watch is on the shelf.

14. Where is Nicks'/ Nick's racket?

15. My uncle's / uncles' family lives in New York