For many years, people __ electric ears. However, making them has been more difficult than predicted

题目简介

For many years, people __ electric ears. However, making them has been more difficult than predicted

题目详情


For many years, people __ electric ears. However, making them has been more difficult than predicted.
A.had dreamed ofB.have dreamed ofC.dreamed ofD.dream of
题型:单选题难度:偏易来源:不详

答案

B

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