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    精英家教网 > 高中英语 > 题目详情
    We will lose the game unless he ______ us.
    A．helpsB．helpedC．was helpingD．has helped
    A
    考查时态。Unless除非，引导条件状语从句，主句用将来时，从句用一般现在时代替将来时，故选A。
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