The United States is full of automobiles (机动车). There are still many families without cars. But some families have two or 46  more cars. However, cars are used for more than pleasure. They are a 47  part of life.

Cars are used for 48   . They are driven to offices and factories by workers who have no other way to 49   their jobs. When salesmen are sent to 50   parts of the city, they have to drive in order to 51   their products. Farmers have to drive into the city in order to shop for necessities.

Sometimes, small children must be driven to 52   . In some cities, school buses are used only when children 53    more than a mile from the school. When the children are too 54   to walk that far, their parents take 55   driving them to school. One 56    drives on Mondays, taking her children and the neighbors' children as well. Another mother drives on Tuesdays, another on Wednesdays and so on. This is 57    forming a car pool (拼车). Working people also form car pools, with three or four people taking turns driving to the place 58   they work.

More car pools should be formed in order to put 59   cars on the road and to use less oil. 60   is a great problem, and so is the traffic in and around cities. Too many cars are being driven. Something should be done about the use of cars.

46. A. even                      B. much                    C. little                      D. such

47. A. great                     B. necessary             C. proper                 D. possible

48. A. families                 B. business               C. education            D. farms

49. A. get to                    B. look for                C. find out                D. use up

50. A. same                   B. different             C. every                 D. each

51. A. catch                    B. create                  C. cover                   D. carry

52. A. cities                     B. schools                C. parks                   D. gardens

53. A. move                    B. study                   C. live                      D. work

54. A. small                    B. big                     C. young                 D. old

55. A. money                   B. time                     C. pride                    D. turns

56. A. parent                   B. child                    C. way                     D. car

57. A. call                       B. calling                 C. to call                 D. called

58. A. where                   B. that                      C. which                  D. when

59. A. more                     B. fewer                   C. many                   D. less

60. A. Driving                  B. Running               C. Parking                D. Forming