练习册

  • 练习册
  • 试题
    Every possible means to help the poor people in Africa. A. have tried B. have been tried C. has tried D. has been tried 【查看更多】

     

    题目列表(包括答案和解析)

    Every possible means ________ to help the poor people in Africa.

    A. have tried　

    B. have been tried　

    C. has tried　

    D. has been tried

    查看答案和解析>>


    同步练习册答案