练习册

  • 练习册
  • 试题
    -I knocked at your door, but nobody answer. -You should the door bell. A. try touching B. tried to touch C. have tried touching D. have tried to touch 【查看更多】

     

    题目列表(包括答案和解析)

    —I knocked at your door, but nobody answer.  
    —You should _____ the door bell.
      A. try touching      B. tried to touch     C. have tried touching D. have tried to touch

    查看答案和解析>>


    同步练习册答案