1. D

2. C

3. B

4. B

5. B

6. B

7. A

8. D

9. D

10. A

11. C

12. B

13. D

14. A

15. C

16. A

17. C

18. D

19. D

20. C

21. B

22. A

23. C

24. D

25. D

26. A

27. B

28. B

29. C

30. B

31. C

32. D

33. C

34. A

35. D

36. C

37. A

38. D

39. C

40. A

I.1d blood

2c chemist

3b who

4c sugar

II.5b watching

6b seeing

7a smoke

8d to post

9d of

10a consuming

11c interactive

12b living

13d invented

14a doesn't

15c won't

16a did

17c will

18d hasn't she

19d aren't

20c aren't

III.21b important

22a from

23c speech

24d fought

25d to bring

26a viewers

27b addtion

28b designed

29c more

30b sporting

IV.31c going

32d they

33c to learn

34a swim

35d they

2.36c my father hasn't seen tom yet

37a I used to go fishing with my brother when I was a child

38d I wish my father could give up smoking

39c I am fond of listening to pop music

40a what about going somewhere for a drink?