It’s required that mineral resources_______ hand in hand with the local environment protection

1. A.
   be exploited
2. B.
   exploit
3. C.
   have exploited
4. D.
   exploited

 It’s required that the students _______ mobile phones in their school, so seldom _______ them using one.

A. not use; will you see

B. should not use; you will see

C. don’t use; will you see

D. would not use; you will see

It’s required that the students__ mobile phones in their school, so seldom _ them using one.

It’s required that the students______ mobile phones in their school, so seldom ______ them using one.

A. not use; will you see                B. should not use; you will see

C. don’t use; will you see              D. would not use; you will see

It’s required that the students__ mobile phones in their school, so seldom _ them using one.

A．not use; will you see

B．should not use; you will see

C．don’t use; will you see

D．would not use; you will see