22. a
23. a
24. b
25. a
26. d
27. a
28. b
29. d
30. c
III.
31. Unless you leave me alone, I will call the police.
32. If you didn't drink too much coffee, you could sleep.
33. If John didn't eat so many chips, he wouldn't be fat.
34. If the weather weren't bad, we would go to the beach.
35. If I had enough money, I could go on holiday this year,
36. If Nam weren't late every day, he wouldn't lose his job.
37. If my father didn't smoke a lot, he wouldn't get a bad cough.
38. I think you should wear your jacket.
39. I think you should eat something.
40. You should clean your room.
41. a
42. c
43. d
44. b
45. d