问题
选择题
It is required that the students mobile phones in their school, so seldom them using one.
A．should not use; you will see
B．don’t use; will you see
C．not use; will you see
D．not use; you will see
答案
答案：C
考查虚拟语气及倒装结构。Require要求，从句用should + v原形，should可以省略；否定词seldom放在句首，主句的主语与谓语发生倒装。选C。