One of our rules is that every student wear school uniform while at school.(2012·辽宁)
A. might
B. could
C. shall
D. will
网友回答
A. might
B. could
(答案→)C. shall
D. will
解析：句意：我们的规章制度之一就是在校时每个学生都应该穿校服。shall用于第二、三人称陈述句中，表示法律规定时，意为“应该”。might可能；could能；will将会。