29.A new teachnique_________the yields as a whole increased by about 30 percent.

A.had applied　 　　B.having applied　　　 C.to have applied　　 　　　 D.having been applied

28.We hope the building project_________will be completed as soon as possible because a lot of citizens are complaining about the noises.

　　　 A. to be carried out B. carried out　　　　 C. being carried out　　　　　　　 D. carrying out

27.　　　 　twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

A. Examining　　 B. Examined　 　C. Being examined　　 D. Having been examined

26.-Lucy doesn’t seem to be what she was.

　 -No. _________so much in the war has made her more thoughtful.

A. Seen　　 B. Her seeing　　　 C. Having seen　　　　 D. To have seen

25. ________to train his daughter in English, he put an ad like this in the paper, “_________,an English teacher for a ten-year-old girl.”

A. Determined; wanted　 B. Determined; wanting　 C. Determine; wanted　 D. Determining; wanting

24.-The police have caught the murderer.

-Yes, but he refused to admit ________ his wife on a rainy night seven years ago.

A. to kill 　　B. to have killed 　　　C. having killed 　　　　D. have been killing

23.Anna was reading a piece of science fiction, completely _____ to the outside world.

A. having been lost　　　 B. to be lost　　 　　　　C. losing　　 　　　　　D. lost

22.The young man sat back in his sofa, ______ with what he had worked out to do with the remaining work.

　　 A. having satisfied　 　B. being satisfied　 　　C. To be satisfied　 　　D. satisfied

21.The construction of an economic zone to the west coast of the Taiwan Straits, _____ at present, will surely stimulate (刺激)the declining economy on both sides of the Straits.

　　　 A.to be discussed　　　　　　 B.being discussed　　　 C.discussed　　 D.discussing

20.The latest survey, _________by , found more than 12 percent of teenagers want to work as pilots.

　　　 A.to be carried out　　 B.being carried out　　 C.carried out　　　　 D.having been carried out