◎ 题干
  Can you tell me ______ to join the army?
A.how does a person have to be old B.how old does a person have to be
C.how old a person has to be D.how a person has to be
◎ 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 tell me ______ to join the army?A.how does a person have to be oldB.how old does a person have to beC.how old a person has to beD.how a person has to be…”主要考查了你对  【祈使句】【感叹句】  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。