Just because they make more money than I do, ________ they seem to look down on me．

A．so

B．and

C．but

D．不填

－What were you trying to prove to the police?

－________ I was last night．

A．That

B．When

C．Where

D．What

－Are you pleased with what he has done?

－It couldn’t be ________．Why didn’t he put more effort into his work?

A．any worse

B．much better

C．so bad

D．the best

________ that caused him to serve dinner an hour later than usual．

A．It was we being late

B．It was our being late

C．It was we were too late

D．It was because we were late

－Have you ever worked with a tape recorder?

－I ________ it a lot when I was teaching English in Guang Ming School．

A．used

B．was used

C．have used

D．had used

I’d prefer ________ if I didn’t have to do so much work．

A．her

B．this

C．that

D．it

There is some evidence that the two types of sleep, dreaming and dreamless, ________ on the life-style of the animal．

A．depend

B．depends

C．depended

D．depending

Carnegie believed that individuals should progress ________ hard work, but he also felt strongly that the wealthy should use their fortunes ________ the benefit of society．

A．by, into

B．in, to

C．through, for

D．on, of

A composer writes a work, but no one can hear it ________ it is performed．

A．when

B．until

C．before

D．after

The price system is a complex network composed of the prices of all the products bought and sold in the economy as well as ________ of a great number of services．

A．the one

B．that

C．ones

D．those