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:较难

    Three years has passed ever since _____.
    A. he has joined the army                B. he joined the army C. he has been in the army               D. he has been a soldier
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