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    精英家教网 > 高中英语 > 题目详情
    It is high time that we ____ the amount of carbon dioxide in our daily life.
    A. reduce     B reduced    C will reduce   D reduces
    B

    试题分析：考查虚拟语气。固定句式 It is high time that sb 过去时/should+动词原形；是某人做某事的时候了。Should不可以省略。句意：是时候减少二氧化碳排放量的时候了。故B正确。
    点评：固定句式 It is high time that sb 过去时/should+动词原形；是某人做某事的时候了。Should不可以省略。
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