According to the article, which is one of the reasons why legislators have not made summer school compulsory?
A.Students don't like summer school.
B.Instituting such a program would be very expensive.
C.Students who need help the most don't even attend.
D.The program has had mixed results.
A.Students
B.
B.Instituting
C.
C.Students
D.
D.The
E.
【参考答案】
B
属事实细节题。第五段指出,夏季学校不是强制性的,因为这样做耗资巨大。