1. Не ... bom in 1998. 2. We ... students now. 3. We ... good friends in our group. 4. It ... an interesting book. 5. Who ... absent today? 6. He ... a student. 7. What ... he? — He ... a doctor? 8. These ... my pencils. 9. Where ... this book? — It ... on the table. 10. What ... their names? 11. Mary ... a girl. 12. Who ... he? 13. What ... you? 14. This man ... in the room. 15. How ... she? 16. How ... you? — I ... fine. 17. How ... your friend? 18. ... he your son? 19. Tomorrow we ... at home. 20. ... you a sportsman? 21. There ... no book on the table. 22. It ... my parents’ car. 23. There ... 20 students in our group now.