English is more and more important in our daily life．________ of English is helpful if you are to ________ English literature．

A．Good knowledge; study

B．A good knowledge; studying

C．Good knowledge; studying

D．A good knowledge; study

In the midst of utter devastation and chaos, a father left his wife safely at home and rushed to the school where his son was supposed to be, only ________ that the building was as flat as a pancake．

A．to discover

B．to be discovered

C．discovering

D．discovered

________ meet his sister at the airport, he had to get up early．

A．So as to

B．In order to

C．So that

D．In order that

－ Mr．Johnson, would you have some more ice-cream?

－ No, thanks．It’s very good, but I have to ________ my weight, you know．

A．watch．

B．remain

C．notice

D．care

Why don't you put the meat in the fridge?It will ________ fresh for several days．

A．be stayed

B．stay

C．be staying

D．have stayed

The number of the stamps ________ limited, so a number of people ________ to have a look at them．

A．are; want

B．is; wants

C．is; want

D．are; wants

We were in ________ when we left that we forgot the airline tickets．

A．a rush so anxious

B．a such anxious rush

C．so an anxious rush

D．such an anxious rush

－ What do you want to do next?We have half an hour until the basketball game．

－ ________．Whatever you want to do is fine with me．

A．It just depends

B．It’s up to you

C．All right

D．Glad to hear that

Scientists say it may be five or six years ________ it is possible to test this medicine on human patients．

A．since

B．after

C．before

D．when

－ Does David often come to school ________ bus?

－ Yes, but sometimes he comes ________ his father’s car．

A．take; in

B．by; by

C．by; in

D．in; with