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：主要测试主语从句。根据句子中的红体字可知属于两套主谓结构，另外结合句子 students should be given more free time 的结构和所给答案可知只要引导词that即可。译文：学生们应该得到更多自由时间是有许多专家建议的，而且受到学校里孩子们的欢迎。