---- Could you do me a favor and take the box up to the sixth floor?

---- __??????? ____. No problem at all.

A. With please 　 B. My pleasure 　 C. For pleasure 　 D. At your pleasure

--- Could you do me a favour with the case, young man?

     --- ???????

A. A good idea.       ????????????? ????????????? B. With pleasure.     C. You are right. ????????????? D. Don’t worry.

－Could you do me a favor?

－_____________.

   A. Of course not         B. Sure, what’s it?        C. I’m very busy