Error correctionDirections: Each of the following sentences has four parts underlined and marked A, B, C and D. You are to identify the one that needs correction.51. It was very late to save the drowning boy as he had gone downA B Cfor the third time.D52. I can’t help to think it would be fun to play such an exciting game with them.A B C D53. John said his mother would buy him a five-speeds racing bicycle for hisA B csixteenth birthday.D54. By reading the directions carefully, some mistakes in the examinationA B Ccould have been avoided.D55. Of the two lectures, the first was by far the best one, partly becauseA Bthe person who delivered it had such a pleasant voice.C D56. The chairman proposed that every speaker must limit himself to fifteen minutes.A B C D57. That is troubling me is that I don’t have much experience in international commerce (贸易).A B C D58. When I got to the cinema, the film had already started; I ought to get there earlier.A B C D59. After criticizing our proposal in every detail , the director went on telling us that there wasA B Cnothing personal in his comments.D60. Johnnie was not barely able to walk without help because of the bad injury in his left leg.A B C D41. Mary said to her husband that she didn’t feel like to go to the movies that nightA B Cbecause she was tired out after a day’s work.D42. Jack’s mother has to call him at least half a dozen times until he comes down to his dinner.A B C D43. A red –hair boy is needed to play the part of Alfred in this new play.A B C D44. Neither John or his father was able to wake up early enough to catch the morning train.A B C D45. Wilson was surprised to find that there was only one other guest except himself .A B C D46. They say Mexico City is more populous than any city in the world.A B C D47. The atmosphere is consisted of certain gases mixed together in definite proportions .A B C D48. We were pleased to have the opportunity to watch such talented dancers to performA Ba highly acclaimed new ballet .C D49. During that terrible snowstorm ,the police demanded that people stayed off HighwayA B C101 except in cases of emergency.D50. The colonel realized that the private was crying because what he had said.A B C D41. Nancy had a great deal of trouble to concentrate on her work because of the noiseA B Cin the next room.D42. I remember to see that American naturalist two years two ago in India atA B C Dthe dinner party given by Mr. And Mrs. Wynnes.43. No matter whatever happens , we’re determined to do our best and make theA B Cexperiment a success .D44. I can’t get my car started now. Something must have gone wrongly with the engine.A B C D45. Jeremy is such a careless person that he has five wallets stolen by pickpockets this year.A B C D46. Don’t take for granted that all those who score high in the entrance examinationsA B Cwill prove to be the most competent at college.D47. The elderly lawyer thinks it good for his health to walk up the stairs to his officeA Bon the fifth floor instead of to take the elevator.C D48. Most of the freshmen in our college have made far more greater progress in theirA B Cstudy of English than we first expected.D49. Dr. Nolen was honest enough to admit to make errors in judgment on more than one occasion.A B C D50. Our history professor is such a knowledgeable person that it seems there isn’tA Bnothing which he does not know.C D11. The old artist is in the habit of going for a walk in the park every morning except it rains.A B C D12. He went to the library and spent the while afternoon there to-look for material for an articleA B Con Shakespeare.D13. The book was so bored that I returned it to the library without- finishing it.A B C D14. Jack was in the conference room discussing plans with the other committee members when theA Bchairman had called to say he’d be- late.C D15. Maradona, who led Argentina to their World Cup triumph in Mexico in June 1986,Ais undoubtedly one of the greatest soccer player the world has ever produced.B C D16. Paul suggested that they meet in the front of the school gate at one P.m. Friday afternoon.A B C D17. After making observations for a week, Sam found why Mr. Hobbs’A B Cshirt factory was so inefficient.D18. Since the beginning of this century, more and more scientistsAhave become interested in the way how the human brain works.B C D19. On his way to school yesterday morning Prof. Wang met an oldA Bfriend and stopped talking with him for quite a while.C D20. Not until my mother told me the sad news last night did I knewA B Cthat our neighbor Dr. Li was killed in a car accident the week before.D。