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题目
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Not until I read your letter ________ the true state of the affairs.
A.did I understandB.had I understood
C.I understoodD.I had understood

答案
A
解析
考查倒装。否定结构Not until置于句首时,主句要用部分倒装,由此可以排除C、D两项;此外,understand这一动作和“read”几乎是同时发生的,都发生在过去的某个时间,因此用一般过去时态。故A项正确。
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试题【Not until I read your letter ________ the true state of the affairs.A.did I unde】;主要考察你对倒装句等知识点的理解。[详细]
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