1) раскрыть скобки и написать глаголы в настоящем времени.

2) переделать вопросы в прошедшее время

3) ответить на вопросы

упражнение 2.

2. since, 3. for, 4. since, 5. for, 6. since, 7.for, 8.since, 9. for, 10. for, 11. for, 12. for, 13. for, 14. for, 15. since, 16. for, 17. since, 18. since, 19. since, 20. for, 21. since

упражнение 3

1. has written; 2. have drawm; 3. has blown out; 4. has drunk; 5. has fallen; 6. has given; 7. have made; 8. have eaten; 9. the train has just gone; 10. have just told; 11. have never been; 12. have just gone away; 13. has sold; 14. have read.

упражнение 4

1. hasn't watched; 2. hasn't already cleaned; 3. hasn't made; 4. hasn't bought; 5. haven't painted; 6. hasn't bought; 7. hasn't just cooked; 8. hasn't already eaten; 9. haven't gone; 10. haven't been 11. hasn't just broken;12. haven't cleaned; 13. hasn't phoned; 14. hasn't just arrived; 15. hasn't just started; 16. hasn't gone; 17. haven't left; 18. hasn't changed; 19. haven't worked; 20. hasn't been.