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:期中考试 难易度:中档

    —The windows must have taken you quite a lot of time that day.

    —You are right. They ______ for weeks.

         

    A. wouldn’t be cleaned                             B. haven’t been cleaned C. weren’t cleaned                                       D. hadn’t been cleaned
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