13. b

14. c

15. b

16. c

17. a

18. a

19. c

20. a

Ex2:

9. clarity

10. irresponsible

Ex3:

1. familiarize

2. partially

3. heady

4. authority

5. discouraged

6. additives

7. misbehaved

8. classifying

9. indefensible

10. odourless

Ex4:

1. failure

2. unfriendly

3. carelessly

4. straighten

5. plentiful

6. once

7. unreliable

8. conclusion

9. imprisonment

10. deathly

Ex5:

1. insufficient

2. dishonest

3. performance

4. collections

5. alive

6. livers

7. dying

8. upbringing

9. pregnancy

10. unemployment

27. D

28. B

29. C

30. D

31. A

32. A

33. B

34. A

35. B

36. D

37. A

38. A

39. B

40. C

41. A
42. B

43. C

44. A

45. D

46. C
47. B

48. D

49. C

50. D

51. A

52. B

53. A

I,

1. D

2. B

3. A

4. A

5. A

II,

1. B (-> driving)

2. A (-> is studying)

3. B (-> likes)

4. B (-> cooking)

5. B (-> hangs)

III,

1. D

2. D

3. D