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    . For many years, people electric ears. However, making them has been more difficult than predicted. A. had dreamed of B. have dreamed of C. dreamed of D. dream of 【查看更多】

     

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    .（浙江卷15）. For many years, people __ electric ears. However, making them has been more difficult than predicted.

      A. had dreamed of      B. have dreamed of       C. dreamed of         D. dream of

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