题目

You ________ to leave until you _______ your work.   A. won’t be allowed; have finished B. won’t allow; finish  C. won’t be allowed; will finish  D. won’t allow; will finish 答案: A   该句考查的是not ... until句型,由until,when,before等引导的时间状语从句不与将来时态连用,应该用一般现在时或现在完成时代替  
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