Schools _____ let students have sports for at least an hour a day

题目

Schools _____ let students have sports for at least an hour a day
A.world B.might C.should D.could
说原因

答案

C
A是会..B是可能..C是应该..D是能..
这句话的意思就是学校应该让学生一天至少做一个小时的运动..