2. 外语
  3. For more than two decades,【C1】______the cost of college has climbed at twice the rate of inflation, critics have【C2】______that b

For more than two decades,【C1】______the cost of college has climbed at twice the rate of inflation, critics have【C2】______that b

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问题     For more than two decades,【C1】______the cost of college has climbed at twice the rate of inflation, critics have【C2】______that bloated bureaucracies, overpaid faculty, and【C3】______amenities are【C4】______tuition. Yet in a new book—Why Does College Cost So Much?— economists Robert Archibald and David Feldman argue that college isn’t actually【C5】______
    The reason:【C6】______the total cost of attending an in-state, four-year public university has nearly doubled to $16,140【C7】______2000, the benefits that come【C8】______it have increased【C9】______too. Indeed, over the same time【C10】______, the difference in wages between those who attend college and those who don’t has climbed【C11】______20 percent.
    Yet in the aftermath of the recession, a more【C12】______question is who’s losing【C13】______in the process? Even though aid packages have risen by more than 50 percent since 2000, one recent study found that college enrollment could fall by 3.6 percent【C14】______the housing bust,【C15】______has made it harder for families to finance their children’s education.
    "The prices are rising【C16】______at the time【C17】______minorities and lower-income families are having the most trouble meeting costs," says Rucker Johnson, a professor of public policy at the University of California, Berkeley.【C18】______college may still be a good deal, but its price is【C19】______at a time when【C20】______people can afford it.
【C7】
选项 A、until
B、since
C、by
D、before
答案B
解析 语法结构题。由has nearly doubled可知，本句使用了现在完成时，空后的2000应该为时间状语。使用现在完成时的句子通常用since引导时间状语，所以答案为B。
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