◎ 题干
The telephone _____ three times in the last hour, and each time it _____ for my sister.
A.had rung; wasB.has rung; wasC.rang; has beenD.has been ringing; is
◎ 答案
查看答案
◎ 解析
查看解析
◎ 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 sister.A.had rung; wasB.has rung; wasC.rang; has beenD.has been ringing; is…”主要考查了你对  【一般过去时】【一般过去时的被动语态】  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。