—Do you know ____ the 2011 Xiamen International Marathon was held?

—On January 2．

    A．when it was that         B．when was it that

    C．what it was that         D．what was it that

—Do you know ____ the 2011 Xiamen International Marathon was held?
—On January 2．

1. A.
   when it was that
2. B.
   when was it that
3. C.
   what it was that
4. D.
   what was it that

—Do you know ____ the 2011 Xiamen International Marathon was held?

—On January 2．

    A．when it was that         B．when was it that

    C．what it was that         D．what was it that

—Do you know ____ the 2011 Xiamen International Marathon was held?
—On January 2．

—Do you know ____ the 2011 Xiamen International Marathon was held?

　 —On January 2．

　 A．when it was that　 　　　　 　　　　　 B．when was it that

　 C．what it was that　 　　　　 　　　　　 D．what was it that