Can you tell me how much___________________?  

A．you paid the book for

B．you spent the book on

C．the book took you

D．you bought the book for

特快专递邮件退交寄件人时，收寄局应收回（），并开据退还/补收邮费收据，将所收邮费退还寄件人。

A.邮件收据

B.详情单

C.详情单第三联

D.申请书