It is difficult to __________ one twin from the other. They almost don’t _________ from each other.

A. differ; distinguish　

B. distinguish; different　

C. distinguish; differ　

D. tell; different

The customer didn’t choose 　　 of the ties and went away without looking at a third one .

　 A．many 　 B．any C．all D．either

People are looking forward to living in h ______ with nature.

She is already two hours late. What _________to her?

A. can have happened　　　　　　　 B. must have happened

C. should have happened　　　　　　 D. must happen

China is known　　 greatly in terms of its cultural values over the past few years.

A．to change　　　 B．having changed　　　　　　　 C．changing D．to have changed

I _____ to take a holiday this summer, but I had to change my plan .

A. would hope 　 B. was hoping　 C. had been hoped 　 D. had hoped

I’ll show you a store___you may buy all____you need.

　 A. in which; that B. where; which　　　　 C. which; that　　　 D. that; that

People try to avoid public transportation delays by using their own cars, and this 　　 ____creates further problems.

A.in short 　　　 B.in case 　 C.in doubt　　　 D.in turn

All of them felt it necessary that they________the meeting.

A. attend 　　　　　　　　　　 B. would have attended

C. attended 　　　　　　　　　 D. were to attend

He never said that he was good at mathematics, ________?（ ）

A. was he　　　 B. wasn’t he　　　　 C. did he　　　　　　 D. didn’t he