◎ 题干
---______ does she play volleyball every day?
---_____ half an hour.
[     ]
A. How long; With  
B. How long; For  
C. When; For  
D. When; At
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“---______ does she play volleyball every day? ---_____ half an hour.[ ]A. How long; WithB. How long; ForC. When; ForD. When; At…”主要考查了你对  【介词】【疑问词组】  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。