◎ 题干
“ Can you speak English ?”“ Of course ,  I have studied it ___  I was six years old.”
A. though        B. since            C. before.
◎ 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““ Can you speak English ?”“ Of course , I have studied it ___ I was six years old.”A. though B. sinceC. before.…”主要考查了你对  【状语从句】  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。