◎ 题干
—_____ does your sister walk her dog?         
—Once a week.                      
[     ]
A. How many
B. How fast
C. How soon
D. How often
◎ 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“—_____does your sister walk her dog? —Once a week.[ ]A. How many B. How fast C. How soon D. How often…”主要考查了你对  【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。