1. i … a pupil. 2. my father … not a teacher, he a scientist. 3. … your sister a teacher? 4. mary … a painter. 5. … they at home? 6. my father … a worker. 7. she … at work. 8. … you a doctor? 9. he … a pilot. 10. we … students. 11. they … carpenters. 12. they at home? 13. they not at home. 14. he at work. 15. your sister a typist? 16. your brother at school? 17. your sister in the cabinet? 18. my sister … at home. 19. this your cat? 20. she an actress. 21. this my bag. 22. he professor. 23. helen a singer. 24. you an engineer? 25. he … russian.
2.is,is
3.are
4.is
5.are
6.is
7.is
8.are
9.is
10.are
11.are
12.are
13.are
14.is
15.are
16.are
17.are
18.is
19.is
20.is
21.is
22.is
23.is
24.are
25.is
To be - am , is , are
Am - I
Is - she , he , it
Are - we , are , they