1. this computer belongs to me. it's 2. is this umbrella helen? - yes,it's umbrella. 3. excuse me. is this my file or it' 4 you check my test and i'll check 5. the cat washed itself with paws.6. she is a cousin of . our mothers are sisters. 7. he is a friend of peter, isn’t he? 8. he asked a difficult question. i couldn’t .9. she invited us to thanked . 10. they called yesterday. he called back at once. 11. the teacher told boris that the best paper was . 12. you scratch back, and i’ll . 13. helen is clever. that bright idea was . 14. this coffee is very good. i like . 15. they showed credit cards, but we couldn’t find.

1. This computer belongs to me. It's MINE.
2. Is this umbrella YOURS, Helen?- yes,it's MY umbrella.
3. Excuse me. Is this my file or YOURS?-it's MINE.
4 You check my test and I'll check YOURS.
5. The cat washed itself with ITS paws.
6. She is a cousin of MINE . Our mothers are sisters.
7. He is a friend of YOURS, Peter, isn’t he?
8. He asked ME a difficult question. I couldn’t answer IT .
9. She invited us to HER party. WE thanked HER.
10. They called HIM yesterday. He called THEM back at once.
11. The teacher told Boris that the best paper was HIS.
12. You scratch MY back, and I’ll scratch YOURS.
13. Helen is clever. That bright idea was HERS.
14. This coffee is very good. I like ITS smell.
15. They showed THEIR credit cards, but we couldn’t find OURS.