1. this is house. 2. this is house in which i live. 3. this is butter. 4. this butter i bought for you. 5. my father is worker. 6. his father is worker who improved this machine. 7. this man is attorney i told you about. 8. ann's mother is investigator. 9. his wife is doctor. 10. his wife is doctor who treated my sister. 11. february is shortest month. 12. july is seventh month of the year. 13. it is indian film. 14. it is film we discussed yesterday. cow is domestic animal. 16. carrot is vegetable. 17. carp is fish.

1. This is a house.
2. This is the house in which I live.
3. This is butter.
4. This is the butter I bought for you.
5. My father is a worker.
6. His father is the worker who improved this machine.
7. This man is the attorney I told you about.
8. Ann's mother is an investigator.
9. His wife is a doctor.
10. His wife is the doctor who treated my sister.
11. February is the  shortest month.
12. July is the seventh month of the year.
13. It isan Indian film.
14. It is the film we discussed yesterday.
15. Cow is a domestic animal.
16. Carrot is a vegetable.
17. Carp is a fish.