It is required that students _____mobile phones at school, so seldom _____them using one.

A．don’t use; will you see

B．should not use; you will see

C．not use; will you see

D．can’t use; will you see

下列发明与创造不是英国人完成的是[ ]

A．蒸汽机

B．珍妮机

C．火车

D．轮船