One of our rules is that every student wear school uniform while at school.
A. shall
B. might
C. will
D. could
网友回答
(答案→)A. shall
B. might
C. will
D. could
解析:考查情态动词shall的用法:shall用于第二人称第三人称,可以表示警告,命令,允诺,规定,此处表示规定应尽的责任和义务。句意:我们的规定之一是学生在学校的时候必须要穿校服。选D。