1 月大学英语四级单项选择题及参照答案Part III Vocabulary and Structure (20 minutes)Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best compl-etes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the centre.41. By the time you get to New York, I _______for London.A) would be leaving B) am leavingC) have already leftD) shall have left42. The article suggests that when a person _______ under unusual stress he should be especially careful to have a well-balanced diet.A) is B) were C) beD) was43. The lawyer advised him to drop the _______, since he stands little chance to win.A) event B) incident C) caseD) affair44. Sometimes children have trouble _______fact from fiction and may believe that such things actually exist.A) to separate B) separating C) for separatingD) of separating45. He is quite sure that it's ________ impossible for him to fulfill the task within two days.A) absolutely B) exclusively C) fullyD) roughly46. There was a big hole in the road which ________ the traffic.A) set back B) stood back C) held upD) kept down47. Many a delegate was in favor of his proposal that a special committee _______ to investigate the incident.A) were set up B) was set up C) be set upD) set up48. In the Chinese household, grandparents and other relatives play ________ roles in raising children.A) incapable B) indispensable C) insensibleD) infinite49. Eye contact is important because wrong contact may create a communication ________.A) tragedy B) vacuumC) questionD) barrier50. There was such a long line at the exhibition ________ we had to wait for about...