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

　　25. B. The restaurant atmosphere

　　26. C 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 dont want to use up all their life savings.

　　31. C. Be frank and seek help from others.

　　32. A. Health and safety conditions in workplace.

　　33. A. Replace its out-dated equipments.

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

　　35. C. To protest against the poor working condition

　　36. survive

　　37. distant

　　38. backward

　　39. discovered

　　40. scientific

　　41. motion

　　42. predicted

　　43. introduced

　　44. that move at a speed greater than light, and therefore, might serve as our passports to the past.

　　45. seems to have been a part of humanity for as long as human have existed.

　　46. used a definition of time for experimental purposes, as that which is measured by a clock.

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