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:其他 难易度:较难

    Jackson _________finance in Peking University for four years and now he is in an American college for higher education.


    A. studied                B. had studied               C. has studied        D. studies
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