◎ 题干
_____ you _____ to go to the park when they were children?      

A. Did, use        
B. Did, used      
C. Do, used      
D. Do, use
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“_____ you _____ to go to the park when they were children? [ ]A. Did, useB. Did, usedC. Do, used D. Do, use …”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。