填空题

As suburbs grew, businesses moved into the new areas. Large shopping
centres containing a great kind of stores changed consumer patterns. 67. ______
The number of these centres rose from eight in the end of World War Ⅱ to 68. ______
3,840 in 1960. With easy parking and convenient evening time, customers 69. ______
could avoid city shopping entirely. New highways created a better access to 70. ______
the suburbs and its shops. The Highway Act of 1956 provided $ 26,000
million, the largest public work expenditure in U.S. history, to build more 71. ______
than 64,000 kilometres of federal roads to link together all parts of the
country.
Television, consequently, had a powerful impact on social and 72. ______
economic patterns. Developing in the 1930s, it was not widely marketed until 73. ______
after the war. In 1946 the country had about fewer than 17,000 TV sets. 74. ______
Three years later, consumers were buying 250,000 sets a month, and by
1960 three-quarters of all families owned at least one set. In middle of the 75. ______
decade, the average family watched television four to five hours a day.
Americans of all ages grew exposed to increasingly sophisticated advertisements 76. ______
for products said to be necessary for the good life.