46. The European Union countries were once worried that they would not have ______ supplies of petroleum.

　　A) proficient B) efficient

　　C) potential D) sufficient

　　47. In fact, Peter would rather have left for San Francisco than ______ in New York.

　　A) to stay B) stayed

　　C) staying D) having stayed

　　48. He soon received promotion, for his superiors realized that he was a man of considerable

　　A) ability B) future

　　C) possibility D) opportunity

　　49. Britain ahs the highest ______ of road traffic in the world - over 60 cars for every mile of road.

　　A) popularity B) density

　　C) intensity D) prosperity

　　50. How is it ______ your roommate’s request and yours are identical?

　　A) if B) so

　　C) what D) that

　　51. In my opinion, he’s ______ the most imaginative of all the contemporary poets.

　　A) in all B) at best

　　C) for all D) by far

　　52. He didn’t have time to read the report word for word: he just ______ it.

　　A) skimmed B) observed

　　C) overlooked D) glanced

　　53. The leader of the expedition ______ everyone to follow his example.

　　A) promoted B) reinforced

　　C) sparked D) inspired

　　54. What a lovely party! It’s worth ______ all my life.

　　A) remembering B) to remember

　　C) to be remembered D) being remembered

　　55. Who would you rather ______ with you, George or me?

　　A) going B) to go

　　C) have gone D) went

　　56. The ______ goal of the book is to help bridge the gap between research and teaching, particularly between researchers and teachers.

　　A) intensive B) concise

　　C) joint D) overall

　　57. The owner and editor of the newspaper ______ the conference.

　　A) were attending B) were to attend

　　C) is to attend D) are to attend

　　58. We left the meeting, there obviously ______ no point in staying.

　　A) were B) being

　　C) to be D) having

　　59. Their products are frequently overpriced and ______ in quality.

　　A) influential B) inferior

　　C) superior D) subordinate

　　60. The neighborhood boys like to play basketball on that ______ lot.

　　A) valid B) vacant

　　C) vain D) vague

　　61. These people once had fame and fortune; now ______ is left to them is utter poverty.

　　A) all that B) all what

　　C) all which D) that all