练习册

  • 练习册
  • 试题
    39．( )My brother came back home while I my homework. A．did B．am doing C．do D．was doing 【查看更多】

     

    题目列表(包括答案和解析)

    My brother came back home while I           homework.

    A．am doing B．did
    C．was doing D．were doing

    查看答案和解析>>


    同步练习册答案