Ответы и объяснения

Лучший Ответ!
2014-02-12T18:56:14+04:00
7.
1. I haven't written
2. I have had 
3. I have sat 
4. I am taking
5. always give us
6. it is 
7. wants
8. When are you sitting..
9. Are you studying..
10. has just called
8
1. A
2. C
3. A
4. B
5. C
6. A
7. C
8. A
9. B
10. C
11. A
12. B
13. C
14. A
15. A