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:月考试卷 难易度:易

    —What has made him upset recently?

    —________ alone to face the troublesome case.

    A. Left B. Being left C. Having left D. To leave
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