单项选择题
It is required that students（）mobile phones at school，so seldom（）them using one.
A.don’t use；will you seeB.should not use；you will seeC.not use；will you seeD.can’t use；will you see
单项选择题 She is doing the work（）I like it（）.
单项选择题 From his（）voice on the phone I know everything is going under way.
单项选择题 If you were to do it,the result（）different.
