职教组卷基于海量职教高考试题库建立的在线组卷及学习系统
职教组卷
  • 题型:英语知识运用 题类:模拟题 难易度:中档

    — Why didn’t you try to finish the composition?

    — I tried to, but ________ I could, the bell ran announcing the end of the examination.

    A. until  B. when C. after  D. before
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