◎ 题干
—What's that noise?
—Oh,I forgot to tell you.The new machine ________.
A.was tested B.will be tested
C.is being tested D.has been tested
◎ 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“—What's that noise?—Oh,I forgot to tell you.The new machine ________.A.was testedB.will be testedC.is being testedD.has been tested…”主要考查了你对  【现在进行时】【现在进行时的被动语态】  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。