It is required that the students mobile phones in our school, so seldom them using one.
A. can’t use; will you see
B. not use; will you see
C. mustn’t use; will you see
D. shouldn’t use; you will see
网友回答
A. can’t use; will you see
(答案→)B. not use; will you see
C. mustn’t use; will you see
D. shouldn’t use; you will see
解析： 考查虚拟语气和倒装。It是形式主语，that the students mobile phones in our school是主语从句，require后面的主语从句要用(should)+do的虚拟语气，所以排除A,C；seldom表否定意义，用于句首时，后面句子部分倒装，所以选B。