According to a 1996 survey by the National Association of College and University Business Officers, more than three times as many independent institutions of higher education charge tuition and fees of under $8,000 a year than those that charge over $16,000.
According to a 1996 survey by the National Association of College and University Business Officers, more than three times as many independent institutions of higher education charge tuition and fees of under $8,000 a year than those that charge over $16,000.
A. than those that charge B. than are charging C. than to charge D. as charge E. as those charging 答案E我选了D,大家帮忙看看吧,这里怎么会用到ING形式捏?
more than three times as many independent institutions of higher education charge tuition and fees of under $8,000 a year than those that charge over $16,000.
== independent institutions of higher education (more than three times as many as those charging over $16,000 )charge tuition and fees of under $8,000 a year