36. You will never guess whom I __________on the street yesterday.

　　A. ran over

　　B. ran out of

　　C. ran into

　　D. ran up to

　　37. I don't think it is any use __________this matter any further.

　　A. discussing

　　B. to discuss

　　C. to discussing

　　D. to be discussed

　　38. The opening between the rocks was very narrow, but the boys managed to __________through.

　　A. press

　　B. squeeze

　　C. stretch

　　D. leap

　　39. Because of the poor harvest, wheat prices have __________in the last six months.

　　A. added

　　B. jumped

　　C. amounted

　　D. developed

　　40. Many players who had been highly thought of have__________ from the tennis scene.

　　A. disposed

　　B. disappeared

　　C. discouraged

　　D. discarded

　　41. All their attempts to __________the child from the burning building were in vain.

　　A. regain

　　B. recover

　　C. rescue

　　D. reserve

　　42.The__________ goal of the book is to help bridge the gap between research and teaching, partic- ularly the gap between researchers and teachers.

　　A. joint

　　B. intensive

　　C. overall

　　D. decisive

　　43. What makes the space shuttle__________ is that it takes off like a rocket but lands like an air-plane.

　　A. exceptional

　　B. strange

　　C. unique

　　D. rare

　　44. The chances of discovering life on Neptune are about a million__________.

　　A. at one

　　B. for one

　　C. to one

　　D. against one

　　45. They did not find__________to prepare for the worst conditions they might meet.

　　A. worth their while

　　B. it worthwhile

　　C. it worth

　　D. it worthy