1. This hamster is Billy's pet.
2. This tortoise is Billy and Bob's pet
3. I have got a grandmother and a grandfather. My grandparents' car is not new.
4. Mrs Black's.dog is the cleverest animal know.
5. The Blacks' dog doesn't eat bread.
6. Mr Smith's family is not large.
7. Tom's brother is a businessman
8. I have got two friends. My friend's grandparents don't work.
9. I have got two sisters. There is a nice picture in my sisters' room.
10. Mrs Porter's house is very nice.