◎ 题干
When I talked with my grandma on the phone, she sounded weak, but by the time we ___ up, her voice had been full of life
A.were hanging
B.had hung
C.hung
D.would hang
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“When I talked with my grandma on the phone, she sounded weak, but by the time we ___ up, her voice had been full of lifeA.were hangingB.had hungC.hungD.would han…”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。