练习册

  • 练习册
  • 试题
    5．They have been skating ． A．for three hours ago B．since three hours ago C．three hours ago D．since three hours 【查看更多】

     

    题目列表(包括答案和解析)

    They have been skating _________．

    [　　]
    A．

    for three hours ago

    B．

    since three hours ago

    C．

    three hours ago

    D．

    since three hours

    查看答案和解析>>

    They have been skating __________.

    A．for three hours

    B．since three hours ago

    C．three hours ago

    D．since three hours

     

    查看答案和解析>>


    同步练习册答案