◎ 题干
We don't know who ____ for the murder, but the policemen will tell us the truth soon.

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A. is to blame
B. is to be blamed
C. is blaming
D. is to be blaming
◎ 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“We don't know who ____ for the murder, but the policemen will tell us the truth soon. [ ]A. is to blame B. is to be blamed C. is blaming D. is to be blamin…”主要考查了你对  【动词短语】  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。