Bonjour j'ai un exercice que je comprend pas pouvez vous m'aider svp urgent

1.  c'est ton exemple
2. They are not yours.  They are his.
3. It is not his, it is hers
4. They are his, they are hers
5. It is not his.  It is theirs
6. It is not hers, it is theirs
7. They are not mine, they are his
8. They are not ours, they are hers
9. Is is not his, it is theirs
10. They are not theirs, they are hers.