◎ 题干
His father told me that he _____ for the United States three days _____.
[     ]
A. has left; ago
B. had left; ago
C. left; ago
D. had left; before
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“His father told me that he _____ for the United States three days _____.[ ]A. has left; ago B. had left; ago C. left; ago D. had left; before …”主要考查了你对  【副词】【过去完成时】  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。