52. ______ full preparations,we decided to put off the meeting till next week.

A.We did not make　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B.Having not made

C.We had not made　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D.Not having made

51.-Why was he fined?

-He happened to ______ flowers in the park.

A.be seen step on　　　　　　　　　 B.be seen picking　　　　　　　　　 C.be caught to pull　　　　　　　　 D.catch damaging

答案：B

50.The bird flu ______through Asia has jumped from birds to humans at least 20 times so far,______16.

A.sweeps;killed　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B.swept;killing　　　　　　

C.sweeping;to kill　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D.sweeping;killing

49.A cook will be immediately fired if he is found ______in the kitchen.

A.smoke　　　　　　　　　　　　　　　　 B.smoking　　　　　　　　　　 C.to smoke　　　　　　　　　　　　　　 D.smoked

48.It is said that in Australia there is more land than the government knows ______.

A.it what to do with　　　　　　　　　　　　　　　　　　　　　　　　　 B.what to do it with

C.what to do with it　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D.to do what with it

47. John is the only one of the students in the class that never______ a mistake even when it is pointed to him.

A.admit making　　　　　　 B.admits making　　　　　 C.admit to make　　　　　 D.admits to make

46.Knowing how long the test would last,the students who finished ______ back and waited until the end of the exam.

A.settle　　　　　　　　　　　　　　　　　 B.settled　　　　　　　　　　　　　　　　 C.settling　　　　　　　　　　　　　　　 D.to settle

45. 　The old professor told us every part of the materials should be made use of _________ the power station.

A. to build B. building C. build　　　 D. built

44. Hearing the news, he rushed out, _________ the book _________ on the table and disappeared into the distance.

A. left; lain open 　　　　B. leaving; lying open　

C. leaving; lie opened　 D. left; lay opened

43. 　Both of my parents insisted _________ a computer for me, but I don’t think it is necessary.

A. to buy　 B. buying　 C. on buying　　　 D. in buying