A、  B、  C、  CCould you…?{可以做……吗?)请求→接受

Excuse me, but I don’t see any expiration date on this can.
(A)  Have you looked at the bottom?
(B)  This visa has expired.
(C)  You have to reissue the license.

Could you have a look at this blueprint when you’ re done with that?
(A)  Marianne wanted to see you.
(B)  No, I didn’ t have time for that.
(C)  Sure, just leave it on my desk.