◎ 题干
I have been ______ English ______ ten years.
[     ]
A. study; for
B. studying; since
C. studying; for
D. to study; since
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“I have been ______ English ______ ten years. [ ]A. study; for B. studying; sinceC. studying; for D. to study; since …”主要考查了你对  【现在完成进行时】【介词】  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。