problems at that time A enemies B attackers C. intruders D. strangers 51. It was not long after he became the president of the company that many problems began to on him A build B carry C rely D weigh 52. After having to jog a mile to the stadium because his taxi was n traffic. Keino set an Olympic record and won the 1500-meter race nevertheless A stopped B prevented C jammed D stuck 53. Young people like to drink and chat in smoky and B ventilated C. stuffy Dstate 54. As a girl, Im extremely at the way he always stares at me in the office A upset B troubled C happy D annoyed 55. The worldwide economic that began in 1929 plunged Germany into an apparently A problem B crisis C setback D disaster 56. The computer the store's inventory and can quickly check a customers credit record A keeps on at B keeps track of C keeps in with D keeps up with 57. Cars built in other countries have long tended to be more than American cars, in order to save more energy A effective B economical C. efficient 58. A language family is a group of related languages presumably from a common origin A obtained B inherited C derived D deprived 19. Crime detection is, in fact, the discovery, identification, and of criminal evidence as a means of law enforcement A search B reading C pu D analysis 0. It is not possible for an adult to learn to speak a foreign language without the of his A sound B pronunciation C articulation Daccent 6 principally by direct, clo A Infection B. Dis Conflict D Injury 62. Only after the of the major blood groups and the introduction of blood typing in the 20n century did blood transfusion become routinely successful A invention B research C discovery D classification 63. My experience ought to be a warning to those who are too in their own opinion. A certain B sure C confident d. bound 64. This is not an economical way to get more water; It is very expensive A on the other hand B. on the contrary C. in short D. or else 65. It was the first time that such a had to be taken at a british nuclear power station A. presentation B precaution C. preparation that he wasn,'t happy with the arrangements, I tried to book a different hotel A. Perceiving B Penetrating C Puzzling D Preserving 67. The board of the company has decided to its operations to include all aspects of the clothing business A. multiply B lengthen C expand D stretchproblems at that time. A. enemies B. attackers C. intruders D. strangers 51. It was not long after he became the president of the company that many problems began to ________ on him. A. build B. carry C. rely D. weigh 52. After having to jog a mile to the stadium because his taxi was _______ in traffic, Keino set an Olympic record and won the 1500-meter race nevertheless. A. stopped B. prevented C. jammed D. stuck 53. Young people like to drink and chat in smoky and ______ pubs. A. airy B. ventilated C. stuffy D. state 54. As a girl, I’m extremely ________ at the way he always stares at me in the office. A. upset B. troubled C. happy D annoyed 55. The worldwide economic ______ that began in 1929 plunged Germany into an apparently hopeless depression. A. problem B. crisis C. setback D. disaster 56. The computer_______ the store’s inventory and can quickly check a customer’s credit record. A. keeps on at B. keeps track of C. keeps in with D. keeps up with 57. Cars built in other countries have long tended to be more ______ than American cars, in order to save more energy. A. effective B. economical C. efficient D. proficient 58. A language family is a group of related languages presumably ______ from a common origin. A. obtained B. inherited C. derived D. deprived 59. Crime detection is , in fact, the discovery , identification, and ______ of criminal evidence as a means of law enforcement. A. search B. reading C. pursuit D. analysis 60. It is not possible for an adult to learn to speak a foreign language without the ______ of his own native language. A. sound B. pronunciation C. articulation D. accent 61. ________ between human beings is principally by direct, close contact. A. Infection B. Disease C. Conflict D. Injury 62. Only after the ______ of the major blood groups and the introduction of blood typing in the 20th century did blood transfusion become routinely successful. A. invention B. research C. discovery D. classification 63. My experience ought to be a warning to those who are too______ in their own opinion. A. certain B. sure C. confident D. bound 64. This is not an economical way to get more water; ______, it is very expensive. A on the other hand B. on the contrary C. in short D. or else 65. It was the first time that such a ______had to be taken at a British nuclear power station. A. presentation B. precaution C. preparation D. prediction 66. ______ that he wasn't happy with the arrangements, I tried to book a different hotel. A. Perceiving B. Penetrating C. Puzzling D. Preserving 67. The board of the company has decided to ______ its operations to include all aspects of the clothing business. A. multiply B. lengthen C. expand D. stretch