◎ 题干
Hello! I'm glad to see you here. When _____ you _____? 
[     ]
A. did, arrive
B. will arrive
C. have, arrived
D. are arriving
◎ 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“Hello! I'm glad to see you here. When _____ you _____? [ ]A. did, arrive B. will arriveC. have, arrived D. are arriving…”主要考查了你对  【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。