22. Despite the great success of Chang’e I , experts say, it will be at least ten years__________our astronauts can land on the moon.

A. while　　　　　　 B. before　　　　 C. since　　　　　　 　　D. until

21. The No.5 subway line, _____________in October, 2007, has greatly improved the traffic conditions in Beijing.

A. opened　　　　　　 B. was opened　　 C. being opened　　　 D. to be opened

20. The Chinese government has made the Mid-autumn festival a legal holiday, _______people will have a day off.

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

19.All his attention______________ on the computer game that he was playing, so he even didn’t notice his mother enter the room.

A. has been fixed　　　 B. was fixing　　 C. was fixed　　　 　　D. fixed

18.　 He wrote a lot of well –received novels, most of ________were translated into foreign languages.

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

17. 　　　　at the news that she did nothing but _____herself in bed.　

A. So sad she looked; laid　　　 　　　　　 　　　　　　　　　B. So sad did she look; lay

C. So sadly she looked; to lie　　　　　　　 　　　　　　 D. So sadly did she look; to lay

16. Passing through the desert, ______________________.

A. we came into the Dead Valley.　　　 　　　　B. the Dead Valley came into view.

C.there lay ahead of us the Dead Valley. 　　　　D. it was obvious that we reached the Dead Valley.

15. He demanded that such things ______________from happening again.

A. prevented 　　　　　B. prevent　　　　　 C. be prevented　　　　　 D. were prevented

14.　 I didn’t hear the bell ring; I _________ asleep.

　A. must be　　　　 B. must have been　　 C. should be　　　　　 　　D. should have been

13.　 Little Bob is often educated by his parents to be good and friendly to anybody even if ___________.

　A. attacking　　　　 B. is attacked　　　　 C. to be attacked　　　　　　 D. attacked