1. This kitten is Tom's and Bob's pet.
2. The ball isn't Ted's, it's Mike's
3. Mary's and Helen's toys are in the box.
4. There are ten boys in our class. The boy's toys are at home.
5. We have got three pets. The pet's food is on the shelf.
6. Nick's and Mike's brother must help them.
7. Kate's anr Betty's teacher was in London.
8. The girls are ill. The girl's doctor came yesterday.
9. The boy's mother works in this toy shop.
10. ...the Brown's house