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    19．_______ positive，and what's in your mind will happen．（　　）
    A．To stayB．StayC．StayingD．Stayed

    分析 保持乐观，你头脑里所想的就会实现．

    解答 答案是B．考查固定句型：祈使句+and/or+句子，其中祈使句句首要用动词原形．所以答案是B．

    点评 解答此类问题，首先需要分析题干是否属于固定句式，然后根据固定句式要求选择正确答案．

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