According to our school rules, students not carry mobile phones when taking a exam.
A. will
B. may
C. shall
D. need
网友回答
A. will
B. may
(答案→)C. shall
D. need
解析:句意:根据我们学校规定学生参加考试的时候不可以带手机。Shall用于第三,第二人称可以表示“规定,命令,警告,允诺等”,从前面的our school rules,可知用shall,will“将会”,may“可以”,need“需要”,选C.