4. вставьте am, is, are 1. a student. a good student. 2. his a doctor. 3. my not an office-worker. 4. your sister a pupil? – yes, 5. at home now. 6. a first-year student now. 7. my house. 8. they at home? – no, not at home. 9. these drivers. 10. my an engineer. at work. 11. your parents at home? 12. there any books on your table? – yes, 13. her sister a teacher? – yes, 14. at home now. 15. our a scientist.