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76. Never before had taxpayers confronted so many
changes at once as they had in the Tax Reform Act of 1986. so many changes at once as they had in at once as many changes as at once as many changes that there were with as many changes at once as they confronted in so many changes at once that confronted . them in Verb form + Idiom This sentence compares changes before and after 1986. The correct idiom for the kind of comparison
shown here is
as many ... as. Two periods in time are
compared, and the verbs must reflect the difference. The period before 1986 requires the past perfect, had confronted, because it is the earlier of the two; the period beginning in 1986 requires the simple past, confronted, because it is the later. A So many ... as is not the correct idiom; had is the wrong verb tense B At once is awkwardly placed; a clause must follow as to complete the sentence C At once is awkwardly placed; as many ... that is not the correct idiom; there were with is awkward and wordy D Correct. This sentence uses the correct idiom as many ... as, and confronted is the appropriate verb tense. E So many ... that is not the correct idiom; the subject of the verb should be they The correct answer is D. 再看一下og11-59 59. His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had
existed in now currently temperate areas. (A) in which great ice sheets had existed in now currently temperate areas (B) in which great ice sheets existed in what are now temperate areas (C) when great ice sheets existed where there were areas now temperate (D) when great ice sheets had existed in current temperate areas (E) when great ice sheets existed in areas now that are temperate In which or when can be used interchangeably in this sentence. The verb form here should be the simple past existed rather than the past perfect had existed. Now currently is redundant because both adverbs express the same idea. A Had existed should be existed; now currently is redundant B Correct. The simple past verb tense is correctly used in this sentence; now is placed and used correctly. C Where there were areas now temperate is wordy and confusing D Had existed should be existed; current should be currently; in current temperate areas is unclear E Now is an adverb and should be placed just after are 这是og指出的E的唯一的错误，那前面一题为什么又说ad位置不对呢？我晕了，nn救我  | 
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发表于 2007-5-19 10:25:00
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