Use the right form of the pronouns to complete the sentences.
1. The teacher says the best answer is ( he, him, his ). 2. Who has been sitting on (I, me, my, mine) chair? 3. This is my paper, where is (you, your, yours)? 4. Do you know (he, him, his )? 5. I think (she, her, hers) has not seen ( we, our, us). 6. Where are (they, them, their, theirs) children? 7. This is (mine, me, my) team. 8. (Our, us, ours) skates are better than (you, yours, your). 9. The picture is (my, me, mine). 10. Is he a friend of ( yours, your)?