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题库 / Prep2007E1-SC-51
Gasoline marketing is undergoing major changes as stations often not only add convenience stores but also combine with major fast-food chains to build complexes where customers can shop and eat as well as buy gasoline.
not only add convenience stores but also combine with major fast-food chains to build
not only add convenience stores but also they combine with major fast-food chains to build
are not only adding convenience stores but also in combination with major fast-food chains they build
add not only convenience stores, but also combining with major fast-food chains to build
are not only adding convenience stores, but also in combining with major fast-food chains they build
题目分析：
本题考点十分简单，只是考查了not only…but also…连接的两者需要在语意和语法上均保持平行。整个题目只有选项(A)中not only…but also…连接的两者是平行的，所以答案为A。
选项分析：
略。
C, they are not only adding stores but also in combination with fast-food chains, 从省略的语法上来说是可以的，they are adding stores and (they are) in combination with fast-food chains,连词的省略是否恰当关键是省略是否会引起歧义，不会引起歧义的省略就是合适的。这里主要是语意的问题，他们在增加商店表示一个动作的进展，be in combination表示状态和结果，二者不能平行。这也是action noun可以和complex gerund平行，却不能和simple gerund平行的原因，doing sth强调动作的进展，the/one's doing sth以及creation/arrangement/combination等动名词强调结果和状态。
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