Ответ:

упр. 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

упр. 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.

упр. 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 (без never, т.к. двойное отрицание в английском невозможно);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.

Ответ:

exercise 1

1. The pupils have written the dictation.

2. My friend has helped me to solve a difficult problem.

3. I have learnt a poem.

4. She has told them an interesting story.

5. Kate has swept the floor.

6. The waiter has put a bottle of lemonade in front of him.

7. I have eaten my breakfast.

8. We have drunk water.

9. He has brought them some meat and vegetables.

10. You have put the dishes on the table.

exercise 2

1. since
2. since 1995
3. for a long time
4. since last month
5. for two weeks
6. since 2 March
7. for two hours
8. since 1975
9. for six days
10. for a month
11. for two years
12. for three days
13. for ten minutes
14. for three hundred years
15. since Wednesday
16. for seven days
17. since three o'clock
18. since 18 September
19. since my last birthday
20. for a century
21. since 2001

exercise 3

1. has written
2. have drawn
3. has blown out
4. has drunk
5. has failed
6. has given
7. have made
8. have eaten
9. The train has just gone.
10. I have just told the answer.
11. George has never been in Australia.
12. John and Richard have just gone away.
13. has sold
14. have read

exercise 4

1. Jack has not washed the dog.
2. Father hasn't already cleaned his car.
3. Mr. Snowdon has not made a speech at the conference.
4. Granny has not bought me any cakes.
5. They have not...
6. Liz has not bought any flowers.
7. My sister has not ...
8. The cat has not...
9. Mr Gracy has not...
10. I haven't ever been to India.
11. She hasn't...
12. We have not...
13. Chris hasn't...
14. The train has not just arrived.
15. It has not just started to rain.
16. Kelly hasn't gone to America.
17. We haven't left...
18. The street hasn't changed a lot.
19. You haven't worked here for a long time.
20. Mandy hasn't been to Greece.