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    24．I find important how to behave politely before going abroad．A．it's.learned B．it.learning C．it's.learning D．it.to learn 【查看更多】

     

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    I find ________ important ________ how to behave politely before going abroad．

    A．it's，learned          B．it，learning           C．it's，learning              D．it，to learn

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