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-Please go on with your demonstration． -But where was I? -Well, you the two chem

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-Please go on with your demonstration． -But where was I? -Well, you the two chem

—Please go on with your demonstration．

—But where was I?

—Well, you____the two chemicals together．

　 A． tried to mix B． were trying to mix

　 C． were trying mixed D． had tried to mix

试题答案

B

标签：wherebutwasyouwell

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