◎ 题干
We        the manager , but no one        the telephone number .
A.could have called ; knewB.could have called ; had known
C.could call ; had knownD.could call ; knew
◎ 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“ We the manager , but no one the telephone number .A.could have called ; knewB.could have called ; had knownC.could call ; had knownD.could call ; knew…”主要考查了你对  【虚拟语气】【情态动词】  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。