练习册

  • 练习册
  • 试题
    I failed in the final examination last term and only then the importance of studies. A.I realized B.I had realized C.had I realized D.did I realize 答案 D 解析 only+副词/时间状语从句/介词短语位于句首时.句中的主语与谓语往往倒装.此句时态为过去时. 【查看更多】

     

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