请教一道KAP的语法： It has been said that (all one can do for a sprained ankle is leave it alone while it heals itself, ice it, and to) lie with it in a slightly elevated position. B. all one can do for a sprained ankle is to leave it alone to heal itself, to ice it, and C. all one can do for a sprained ankle is leave it alone while it heals itself, and then ice it and D. the only thing that can be done for a sprained ankle is leave it alone while it heals itself, ice it, and E. the only thing that can be done for a sprained ankle is to leave it alone while it heals itself, to ice it, and 答案是D。我选B，虽然我知道B后面的and前面少了一个to，或者说ice it前多了一个to，但可以说the only thing is do sth.吗？为什么不是 the only thing is to do sth？
Kaplan-2-5 At a recent conference, the Transit Authority has stated that the provisions in the Clear Air Act fail to promote mass transit as an alternative to provide transportation. A. has stated that the provisions in the Clear Air Act fail B. stated that the provisions of the Clear Air Act fail C. has stated that the provisions of the Clear Air Act will fail D. stated that the provisions in the Clear Air Act are a failure E. has stated the provisions in the Clear Air Act failed Ans: B, I choose A EX: The Transit Authority made their statement and it was over. The action didn’t continue. 我用完成时，是因为有个recent，时态的判断对我来说，是个难点，该如何解决？ Kaplan-2-14 Modern inventions such as PD may seem to have improved the work conditions of manual laborers, but in fact, have increased the incidence of health hazards such as S because it has aggravated the dust liazard involved in excavation and demolition. A. have increased the incidence of health hazards such as S because it has aggravated the dust hazard. B. Has increased the incidence of health hazards such as S because it has aggravated the dust hazard C. Have increased the incidence of health hazards such as S because they have aggravated the dust hazard. D. Increased the incidence of health hazards such as S because they aggravated the dust hazard E. Increased the incidence of health hazards such as S because of aggravating the dust hazard Ans: C , I choose D EX: There’s no reason to use the past , because the hazard is still happening. 我选D，是因为未划线的句子有个虚拟的意思，本该提高工作条件，而事实是。。。所以我用一般现在时。为什么不对呢？
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发表于 2003-8-2 09:26:00
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