1. 1
2. 1
3. 1
4. 4
5. 1
6. 1
7. 4
8. 1
9. 4
10. 4
11. 2
12. 4
13. 3
14. 4
15. 1
16. 4
17. 3
18. 2
19. 1
20. 1
21. 4
22. 2
23. 3
24. 4
25. 2
2.medicine- N1
3.at
4.after
N1
1 is flowing
2 complain
3 walk
4 borrow
N2
1 began
2 had
3 took
4 worked
N3
1 was eating
2 was hurrying
3 were preparing
4 was arguing
N4
1 found
2 was reading
3 was playing
4 fell
N5
1 has studied
2 has dropped
3 has rained
4 have had
N6
1 bigger
2 most difficult
3 better (well)
1. have been writing 2. write 3. influenced 4. have read 5. has had 6. read 7. Do you read 8. read 9. write 10. try