(共5小题。每小题2分．满分10分)
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为
多余选项。
May the first is an important date in the college admission process in the United States．This is the last day for high school seniors to accept or reject offers of admission in the fall．But according to a recent report，there is a great change．Acceptance rates at the top colleges this year were lower than ever．  61
These days，college applicants are applying to more colleges because online and common applications make the process easier．  62 On the other hand，it takes much time for top colleges to accept students．Students may not like being put on waiting lists．Also，common colleges make great efforts to get the students interested in them．Some colleges hold visiting days that offer a chance to attend classes and stay overnight．Some universities send gifts．  63 
For many families，the most important thing colleges can do is show them the money，especially this year；the weak economy makes parents nervous．  64 The recent problems that spread from the housing market to credit markets have even affected student's loans．So lately，top colleges have to spare lots of money to increase their financial aid for students．
  65  The Education Department expects the number of high school graduates to start to go down．This will happen as the last of the children of the baby boom generation finish high school．The number is not expected to start rising again until 2015．

A．Besides，top colleges are facing changes in the population．

B．What contributes to it?

C．But a mistake can be costly if it happens．

D．But top colleges ignore them．

E．They have international students who know English．
F．It Can mean several acceptances to choose from．
G．They cannot afford college as planned．