练习册

  • 练习册
  • 试题
    This is useful book.It’s unusual book. A.an;a B.a;a C.an;a D.a;an 【查看更多】

     

    题目列表(包括答案和解析)

    — This is _____ useful book. I think.
    — So it is, and it's _____ unusual one.

    [     ]

    A. an, 不填
    B. an, an
    C. a, an
    D. a, a

    查看答案和解析>>

    --This is _______ useful book, I think.

    --So it is, and it's ________ unusual one.

    [　　]

    A．an; /

    B．an; an

    C．a; an

    D．a; a

    查看答案和解析>>


    同步练习册答案