◎ 题干
The telephone ______ three times in the last hour, and each time it _____ for my father.
A.had rung; wasB.has been ringing; isC.rang; has beenD.has rung; was
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The telephone ______ three times in the last hour, and each time it _____ for my father.A.had rung; wasB.has been ringing; isC.rang; has beenD.has rung; was…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。