◎ 题干
The boy is _________ young to know ________.
A.so; what to do B.too; how to do
C.so; how to do D.too; what to do
◎ 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“The boy is _________ young to know ________.A.so; what to doB.too; how to doC.so; how to doD.too; what to do…”主要考查了你对  【句子成分,句子结构】  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。