a teacher in a university,it is necessary to have at least a master’s degree.

A.On becoming B.Become　　 C.One become　　 D.To become

A fast-food restaurant is the place, ____, just as the name suggests, eating is performed quickly.

A. which　　　 B. where　　　 C. there　　　 D.what

On the border between England and Wales ,there is a town which was once only a market, but 　　　　has now become a huge bookstore as well.

　 A. where 　　 B. which 　　　 C. what 　　　 D. that

According to recent exploration to Mars, it may hold ______ water as previously thought.

A. twice as much　　 B. as much twice　 C. twice much as　　 D. much as twice

If you ________ keep out of the trouble, you must keep your mouth shut.

A. should　　　　　 B. will

C. are going to　　　 D. are to

People are not allowed 　　　　freely at the meeting and they don’t allow________ either.
　A. to talk ; smoking 　　　　  B. to talk , to smoke
　C. talking , smoking　　　　   D. talking , to smoke

The boy ______ studying at once made his parents happy.

By the time this letter reaches you, I ___ for Paris for further education.

　 A. shall have left　　 　 B. had left　 　 C. shall leave　　 　　 D. leave

Although they are very busy, our parents still _______ a lot of time to us.

　 A．devote　　 B．offer　　　 C．spend　　　 D．provide

.The visiting expert preferred giving lecturers to students______________________(被邀请)meetings at times.(invite)