the teacher made a ( ) that all the students should arrive at the classroom before class

问题描述:

the teacher made a ( ) that all the students should arrive at the classroom before class
A:request B:promise C:decision D:change
答案选A,为什么不能选其它的答案,求详细解答!谢谢!

A
这道题从词义就可以判断
老师提出一个要求,所有的学生都要在上课前到达教室.
A要求
B承诺
C决定
D改变