Could you tell me ________?

Yes, He ________ to the library.

[　　]

----Where have you ______?

----I have ______ the library

[    ]

　　A. gone, gone to   B. been, been

　　C. been, gone to   D. been, been to

“Could you tell me ________ ?” “Yes. They ________ to the library.”

[　　]

A．where are the twins, have been

B．where the twins are, have gone

C．where were the twins, have been

D．Where the twins were, have gone

—Where have you___________, Mike?

     I have　____________ to the library with my friends.

   A. been; gone                B. gone; been

   C. been; been                D. gone; gone