◎ 题干
—Did you listen to the report last Friday?
—Yes, it was about the shortage of immigrant workers. That was the first time I ________ about the subject.
A.have heard B.was hearing
C.would hear D.had heard
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—Did you listen to the report last Friday?—Yes, it was about the shortage of immigrant workers. That was the first time I ________ about the subject.A.have he…”主要考查了你对  【过去完成时】【过去完成时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。