3. Although various eighteenth- and nineteenth-century American poets had professed an interest in Native American poetry and had pretended to imitate Native American forms in their own works, until almost 1900. scholars and critics did not begin seriously to study traditional Native American poetry in native languages.
(A) until almost 1900, scholars and critics did not begin seriously to study (B) until almost 1900 scholars and critics had not begun seriously studying (C not until almost 1900 were scholars and critics to begin seriously to study (D) it was not almost until 1900 when scholars and critics began to seriously study (E) it was not until almost 1900 that scholars and critics seriously began studying
我对until的用法存在疑惑！如果不想用it is not until that的形式应该怎么表述？是不是按照C选项改写not until almost 1900 did scholars and critics seriously begin studying? it is not until that/when 应该怎么区别应用？
scholars and critics did not begin seriously to study traditional Native American poetry in native languages until almost 1900 though various eighteenth- and nineteenth-century American poets had professed an interest in Native American poetry and had pretended to imitate Native American forms in their own works.
语法上，to do 在这里作表语。 C 选项，还原，变成称述句为， Scholar and critics were not to begin to seriously study ...... 简单一点 就是， sb. is to begin to study 语法上，to do 不定式在这理作表语是错误的！原因如下，
to do 不定式 作表语的情况 有两种~ 1、to do is to do 如, to see is to believe 2、to do 作表语 进一步解释 主语。如，The goal of my life is to be happy. 如，what I want to do now is to beat GMAC . 根据2、to begin to seriously study 不能够 解释 sb. 即，Scholar and critics
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发表于 2012-7-9 10:59:40
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发表于 2012-7-9 14:53:18
