One of the rules is that every student wear school uniform while at school.A. mightB. co

问题补充：

One of the rules is that every student wear school uniform while at school.

A. might

B. could

C. will

D. shall

答案：

A. might

B. could

C. will

(答案→)D. shall

解析：考查情态动词用法。Shall表示允诺，强制，命令；法律规定要做的事情等；本题正是考查了shall表示法律规定要做的事情，故D正确。