68. The newest satellite can _A_ a thousand telephone conversations and a color TV program at the same time.
A carry B extend C bring D take
carry vt. 传送，传输; extend vt. 延伸，延续(extend to 延伸到，延续到)。
fetch vt. 去拿来，去请来，去叫来; fetch water 打水。
41. The grey building is where the workers live, and the white one is where the spare parts _B_. [spare parts零部件]
A are producing B are produced C produced D being produced
48. _A_ a teacher in a university, it is necessary to have at least a master's degree.
A To become B Become C One become D On becoming
master's degree 硕士学位; 当介词on后面加动词ing形式时表示时间概念“在…之后”。
49. The little man was _C_ more than one metre fifty tall.
A nearly B quite C hardly D almost
hardly more than 不足，不到。
36. The little man was _B_ one metre fifty high.
A almost more than B hardly more than C nearly more than D as much as
53. Medical care reform has become this country's most important public health _C_.
A question B stuff C matter D issue
matter 事物，事情; question 有疑而问，并且有待回答的问题;
questions and answers Q & A 问与答; issue n. 问题(强调的是政治方面的问题)。
1999年前，台湾问题Taiwan issue;1999年后，台湾问题Taiwan question，态度转变。
60. If you don't like to swim, you _B_ stay at home.
A should as well B may as well C can as well D would as well
may as well 还是，到不如。
70. They are teachers and don't realize _A_ to start and run a company.
A what it takes B what takes it C what they take D what takes them
start and run a company 创立并经营一家公司。
23. A healthy life is frequently thought to be _D_ with the open countryside and homegrown food.
A tied B bound C involved D associated
be involved with 牵涉，卷入; be associated with 与...相关，联系起来。
homegrown food 自家种的食品; wine 葡萄酒; house wine 自家的酒。
33. The traditional approach _A_ with complex problems is to break them down into smaller, more easily managed problems.
A to dealing B in dealing C dealing D to deal
approach n. 方式，方法; approach to + 动名词。
43. It's already 5 o'clock now. Don't you think it's about time _C_?
A we are going home B we go home C we went home D we can go home
it's about time后面加句子，要用一般过去时来体现虚拟语气。
44. Lightning is a _A_ of electrical current from a cloud to the ground or from one cloud to another. [Lightning n. 闪电]
A rush B rainbow C rack D ribbon
rush n. 冲撞，冲击，撞击; rainbow n. 彩虹，幻想; rack n. 支架，挂架;
ribbon n. 缎带，丝带，绒带。
46. I've already told you that I'm going to buy it, _A_.
A however much it costs B however does it costs much
C how much does it cost D no matter how it costs
however在这里不表示转折，而是句子的引导词，这种情况下它相当于：no matter how。
意思是，我已经决定要买了，不管多少钱。
47. New York _A_ second in the production of apples, producing 850,000,000 pounds this year. [rank 排名，名列第几，强调名列前茅;Big Apple 纽约]
A ranked B occupied C arranged D classified
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