Possessive vs. object pronouns

1 . I think that the bag is John's . I think that the bag is ____________________ .
2 . This ball is the dog's . This ball is ____________________ .
3 . This ring is my mother's . This ring is ____________________ .
4 . This is my book . This is ____________________ .
5 . Is it your pen ? Is it ____________________ ?
6 . We listen to Peter . We listen to ____________________ .
7 . These boots are my children's . These boots are ____________________ .
8 . This DVD belongs to my sister and me . This DVD is ____________________ .
9 . They watch their sons in the garden . They watch ____________________ .
10 . I like Sophie . I like ____________________ .
11 . My brother plays with the cat . He plays with ____________________ .
12 . Do you come with Sue and me ? Do you come with ____________________ ?