四级练习2015.07.27
[audio]http://sound.yywz123.com/tingbbs/cet4/cet420150727.mp3[/audio]Before the 20th century,(1)___________________. Trains were used only for long-distance transportation. Today the car is the most popular sort of transportation in all of the United State. It has completely replaced the horse as a means of everyday transportation. (2)_____________________. Most Americans are able to buy car. (3)________________________.During this period American car manufacturers set about improving their products and work efficiency. As a result,the yearly income of the average family increased from 1950 to 1975 faster than the price of car. For this reason purchasing a new car takes a smaller part of a family's total earnings today.
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