21. A New ideas come up as you write.

22. D Hostess of the weekly “Business World”。

23. B He and his wife did everything by themselves.

24. B He advertises a lot on radio and in newspapers.

25. B The restaurant atmosphere.

26. A There are many false notions about it.

27. C It can lead to the loss of vision in children.

28. D It can only be partly accomplished now.

29. D They have jobs and other commitments.

30. A They don’t want to use up all their life savings.

31. C Be frank and seek help from others.

32. A Health and safety conditions in the workplace.

33. A Replace its out-dated equipment.

34. A They requested to transfer to a safer department.

35. C To protest against the poor working conditions.

36. survive

37. distant

38. backward

39. discovered

40. scientific

41. motion

42. predicted