students should be given more free time is suggested by many experts and weled by kids in school.
A. What
B. Why
C. Whether
D. That
网友回答
A. What
B. Why
C. Whether
(答案→)D. That
解析: 考查名词性从句中的主语从句。That在从句中什么成分也不做,只起一个连词的作用。题中的句子为students should be given more free time,不缺少成分,所以用that引导主语从句,故选D。