◎ 题干
— ______ have you studied Chinese?
— Since four years ago.

A.How long
B.How often
C.How soon
D.How many
◎ 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“—______ have you studied Chinese? — Since four years ago. [ ]A.How longB.How often C.How soon D.How many …”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。