21. When I handed the report to John, he said that George was the person _______.

　　A. to send B. for sending it C. to send it to D. for sending it to

　　22. —What do you think made Mary so upset?

　　—_______ her new bike.

　　A. As she lost B. Lost C. Losing D. Because of losing

　　23. The lady said she would buy a gift for her daughter with the _______.

　　A. 20 dollars remained B. 20 dollars to remain C. remained 20 dollars D. remaining 20 dollars

　　24. There are five pairs _______, but I’m at a loss which to choose.

　　A. to be chosen B. to choose from C. to choose D. for choosing

　　25. _______ in 1636, Harvard is one of the most famous universities in the United States.

　　A. Being founded B. It was founded C. Founded D. Founding

　　26. Fishing is his favorite hobby, and _______.

　　A. he’d like to collect coins as well B. he feels like collecting coins, too

　　C. to collect coins is also his hobby D. collecting coins also gives him great pleasure

　　27. Finding her car stolen, _______.

　　A. a policeman was asked to help B. the area was searching thoroughly

　　C. it was looked for everywhere D. she hurried to a policeman for help

　　28. In order to gain a bigger share in the international market, many state-run companies are striving _______ their products more competitive.

　　A. to make B. making C. to have made D. having made

　　29. Though _______ money, his parents managed to send him to university.

　　A. lacked B. lacking of C. lacking D. lacked in

　　30. There is a new problem involved in the popularity of private cars _______ road conditions need _______.

　　A. that; to be improved B. which; to be improved C. where; improving D. when; improving

　　31. The discovery of new evidence led to _______.

　　A. the thief having caught B. catch the thief

　　C. the thief being caught D. the thief to be caught

　　32. _______ the general state of his health, it may take him a while to recover from the operation.

　　A. Given B. To give C. Giving D. Having given

　　33. The picture _______ on the wall is painted by my nephew.

　　A. having hung B. hanging C. hangs D. being hung

　　34. Sandy could do nothing but _______ to his teacher that he was wrong.

　　A. admit B. admitted C. admitting D. to admit

　　35. Mr. Reed made up his mind to devote all he had to _______ some schools for poor children.

　　A. set up B. setting up C. have set up D. having set up

　　36. _______ late in the afternoon, Bob turned off the alarm.

　　A. To sleep B. Sleeping C. Sleep D. Having

　　37. With a lot of difficult problems _______, the newly-elected president is having a hard time.

　　A. settled B. setting C. to settle D. being settled

　　38. In some parts of London, missing a bus means _______ for another hour.

　　A. waiting B. to wait C. wait D. to be waiting

　　39. In order to make our city green, _______.

　　A. it is necessary to have planted more trees B. many more trees need to plant

　　C. our city needs more trees D. we must plant more trees

　　40. —How do you deal with the disagreement between the company and the customers?

　　—The key _______ the problem is to meet the demand _______ by the customers.

　　A. to solving, making B. to solving, made C. to solve, making D. to solve, made

　　41. The teacher asked us _______ so much noise.

　　A. don’t make B. not make C. not making D. not to make

　　42. _______ time, he’ll make a first-class tennis player.

　　A. Having given B. To give C. Giving D. Given

　　43. He looked around and caught a man _______ his hand into the pocket of a passenger.

　　A. put 　　　　　　 B. to be putting 　　C. to put 　 　D. putting