我觉得应该选C啊 ！！！！

lllmmm

Most of Portugal’s 250,000 university students boycotted classes in a one-day strike to protest a law that requires them to contribute $330 a year toward the cost of higher education, previously paying $7 per year.
A.    year toward the cost of higher education, previously paying $7 per year
B.    year toward the cost of higher education, for which was previously paid $7 per year
C.    year, compared to the previously $7 per year, toward the cost of higher education
D.    year toward the cost of higher education, instead of the $7 per year required previously
E.    year as opposed to the $7 per year required previously for the cost of higher education
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330 a year 和 7 per year都在 toward the cost of higher education前面  不是很好吗  为什么选D呢    ？？？

jeanq

顶！！！啊！！！为什麽不是C@!

Gail小M

compared to the previously $7 per year: previously is a adverb, modifies $7 incorrectly

lllmmm

还有 这样的陷阱啊    谢谢！Gail