◎ 题干
When _____ you _____ to Shanghai? 
[     ]
A. do, come
B. did, come
C. did, came
D. were, come
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“When ______ you ______ to Shanghai? A. do, come B. did, come C. did, came D. were, come…”主要考查了你对  【助动词的过去式】【一般过去时】  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。