◎ 题干
选择填空。
— What ______ her grandmother do on last Monday morning?
— Sorry, I don't know.
[     ]
A.was
B.did
C.does
◎ 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“选择填空。 —What ______ her grandmother do on last Monday morning?— Sorry, I don't know. [ ]A.was B.did C.does …”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。