—Is there anything I can do for you，sir? — ．
A. Perhaps．Go ahead
B. No．Take your time
C. Yes．You're wele
D. Not now．Thanks anyway
网友回答
A. Perhaps．Go ahead
B. No．Take your time
C. Yes．You're wele
(答案→)D. Not now．Thanks anyway
解析：此处为肯定和拒绝两种答案，但A项太生硬，C项意思与语境不符，B项Take your time慢慢来与句意不符，答案D符合。