1. I am a pupil. 3. Is your aunt a doctor? – Yes, she is. 4. Are they at home? – No, they are not at home, they are at work. 5.My brother is a worker. He is at work. 6. Are you an engineer? – Yes, I am. 7. Is your sister a typist? – No, she is not a typist, she is a student. 8. Is your brother at school? – Yes, he is. 9.Is your sister at school? – No, she is not at school. 10. My sister is at home. 11. Is this your watch? – Yes, it is. 12. She is an actress. 13. This is my bag. 14. My father is an office–manager. 15. He is at work. 16. Helen is a painter. She has some fine pictures. 17.They are on the walls. She has much paper.18. It is on the shelf. The shelf is brown.19. It is on the wall. 20.Helen has a brother. He is a student. He has a family. 21. His family is not in Saint-Petersburg, it is in Moscow.