◎ 题干
—Why didn't you tell me?
—I _______ tell you.

A. do
B. did
C. am
D. are
◎ 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“—Why didn't you tell me? —I _______ tell you. [ ]A. do B. did C. am D. are …”主要考查了你对  【助动词的过去式】  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。