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    【题目】-- have you changed since you came to this school?

    --I’ve studied much harder．

    A. How B. When C. Why D. Where

    【答案】A

    【解析】句意：自从你来到这所学校发生了怎样的变化？——我学习更加努力了。A. How怎样； B. When何时；C. Why 为什么； D. Where在哪儿。根据答语可知，答案为A。

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