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　　41. He came back late, _B_ which time allthe guests had already left.
　　A after B by C at D during
　　介词by引导时间状语时一定与完成时态搭配。
　　45. His remarks left me _D_ about his realpurpose.
　　A wondered B wonder C to wonder D wondering
　　49. Although they plant trees in this areaevery year, the tops of some hills are still _D_.
　　A blank B hollow C vacant D bare
　　blank adj. 空白的（因为没写字而空白）； hollow adj. 空心的，中空的；
　　bare adj. 光突突的（山上没有树和草）；没带首饰的； bald adj. 秃顶的。
　　50. Being a pop star can be quite a hardlife, with a lot of travelling _D_ heavy schedules.
　　A with regard to B as to C in relation to D owing to
　　owning to = due to 因为。
　　52. William Penn, the founder ofPennsylvania, _C_ defended the right of every citizen to freedom of choice inreligion.
　　A peculiarly B indifferently C vigorously D inevitably
　　peculiar adj. 奇特的； indifferently adv. 冷漠地，不积极地；
　　vigorously adv. 强有力的，强劲有力的； inevitably adv. 不可避免地，必然地。
　　60. We have been told that under nocircumstances _A_ the telephone in the office for personal affairs.
　　A may we use B we may use C we could use D did we use
　　61. In previous times, then fresh meat wasin short _D_, pigeons were kept by many households as a source of food. [inshort supply 供应不足]
　　A store B provision C reserve D supply
　　in previous times 从前； fresh water 淡水； fresh meat 鲜肉； dove n. 鸽子；
　　bean curd 豆腐； Bible 圣经； bible 具有权威性的书； God 上帝； god 神。
　　62. As Commander-in-Chief of the armedforces, I have directed that all measures _C_ for our defense.
　　A had been taken B would be taken C be taken D to be taken
　　以下几个表示“指挥，命令”的动词：order, command, direct.
　　在引导宾语从句时从句要用“(should)+ 动词原形”来体现虚拟语气。
　　63. A thief who broke into a church wascaught because traces of wax, found on his clothes, _A_ from the sort ofcandles used only in churches.
　　A had come B coming C come D that came
　　65. I was _B_ the point of telephoning himwhen his letter arrived.
　　A to B on C at D in
　　to the point of 到了…程度； on the point of doing sth. 正要做某事情；
　　at the point of 在某点上； when除了表示“当…时候”外，还可以表示“恰在此时”或“刚…就…”
　　68. The project _C_ by the end of 2000,will expand the city's telephone network to cover 1,000,000 users.
　　A accomplished B being accomplished
　　C to be accomplished D having been accomplished
　　69. _C_ evidence that language-acquiringability must be stimulated.
　　A If being B It is C There is D There being
　　evidence表示“证据”，的特点是后面经常带同位语从句说明证据的内容。
　　language-acquiring ability 语言习得能力。 evidence不用在“it is …”这种结构当中。
　　64. After the guests left, she spent halfan hour _C_ the sitting-room[客厅].
　　A ordering B arranging C tidying up D clearing away
　　order vt. 命令；订购；整理，使有条理性； order one's thoughts 整理思路，整理思绪；
　　arrange v. 布置，安排； tidy up 整理，使整洁（后面通常加某个房间）；
　　clear away 把…清除掉。
　　67. A lorry[卡车] _A_ Jane's cat and sped away.
　　A ran over B ran into C ran through D ran down
　　run over 撞倒并碾过； run into 不期然地遇到； run through 贯穿（多用于抽象事物）；
　　run down 贬低； run down one's opinion.
　　70. Those gifts of rare books that weregiven to us were deeply _A_.
　　A appreciated B approved C appealed D applied
　　rare books 珍藏本的书籍； appreciate 重视，欣赏，感激； approve 批准，通过，赞成；
　　approve of 赞成，满意； apply 应用，运用；
　　appeal 呼吁（表示此意义时它经常于for搭配）；申诉，上诉（表示此意义时它要于to搭配）。