◎ 题干
He _____ his homework yesterday evening.

A. didn't    
B. isn't          
C. isn't do
D. didn't do
◎ 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“He _____his homework yesterday evening.[ ]A. didn't B. isn'tC. isn't do D. didn't do…”主要考查了你对  【实义动词】【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。