练习册

  • 练习册
  • 试题
    Nobody can explain the mystery why he suddenly disappeared. 【查看更多】

     

    题目列表(包括答案和解析)

    Nobody can explain the mystery ____ he suddenly disappeared.

             A. why               B. what   C. whether                       D. which

     

    查看答案和解析>>

    Nobody can explain the mystery ____ he suddenly disappeared.

           A. why           B. what   C. whether                 D. which

    查看答案和解析>>

    Nobody can explain the mystery ____ he suddenly disappeared.

           A. why           B. what   C. whether                 D. which

    查看答案和解析>>

    Nobody can explain the mystery ________ he suddenly disappeared．

    [　　]
    A．

    why

    B．

    what

    C．

    whether

    D．

    which

    查看答案和解析>>


    同步练习册答案