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:单元测试 难易度:较易

    I remembered having locked the door, but I came back to     .
    A. take off      B. put up C. make sure     D. used to
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