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题目
题型:不详难度:来源:
_____ that air conditioners cause so much pollution, I would never have bought one.
A.Had I knownB.I had knownC.Were I to knowD.Did I know

答案
A
解析
考查虚拟语气。根据句意可知考查与过去事实相反的虚拟语气,从句用had + done,Had I known ="If" I had know,故选A。
核心考点
试题【_____ that air conditioners cause so much pollution, I would never have bought o】;主要考察你对倒装句等知识点的理解。[详细]
举一反三
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