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    精英家教网 > 高中英语 > 题目详情

    【题目】— Can I have the day off tomorrow ?

    — Unless you _______ your task at hand.

    A. will complete B. have completed

    C. had completed D. completed

    【答案】B

    【解析】句意：---明天我可以请假吗？----除非你完成了你手头的工作。Unless引导的时间状语从句用一般现在时代替将来时，排除A。因为题干说的是明天的事情，应用现在。故选B。

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