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    精英家教网 > 初中英语 > 题目详情
    I ________ that the earth moves around the sun.
    A. often doubt                         B. never doubt                            C. sometimes doubt
    B
    考查doubt的用法。doubt用于肯定句时，宾语从句用whether引导；用于肯定句时，用that引导宾语从句。句意“我从不怀疑地球是围绕太阳转的。”根据that可知，本句是否定句。故选B。
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