Let’s make it at seven o’clock on Tuesday morning at my office if _______.

A. you’re convenient　　　 　　　　　 B. it is convenient for you

C. you feel convenient　　　 　　　　 D. it is convenient with you

Parents are taught to understand_______ important education is to their children’s future.

A. that　　　　　 B. how　　　　　 C. such　　　　　　 D. so

Fire, on the one hand, can benefit the world. On the other hand, it can also destroy the world if not _________under control.

　　　　 A．bring　　　　 B．bringing　　 C．brought　　 D．being brought

The play　　　　　　 next month aims mainly to reflect the local culture．

　 A．produced　　 B．being produced C．to be produced D．having been produced

You should try to get a good night’s sleep ______ much work you have to do.

　　 A. however　　 B. no matter

C. although　　　 D. whatever

This is a new kind of machine______ parts are all made by ourselves.

　 A. which　 B. that　 C. those　 D. whose

More than five ______ doctors and rescuers have got to Yushu County so far.

　 A. thousand　　 B. thousands　 C. thousand of D. thousands of

I called Hannah many times yesterday evening，but I couldn’t get through.Her brother　　

on the phone all the time!?

A.was talking　　　 B.has been talking? C.has talked　　 D.talked

He was soon back on his feet in such a comfortable s__________with so many beautiful trees and flowers.

—May I park my car here?

—No, you ________. No car is allowed to park here.

A．may not　　 B．needn't　　　 C．mustn't　　 D．daren't