问题补充：
--?
--It depends on what it is.
A. Will you buy me some stamps
B. Would you please do me a favour
C. How about going shopping with me
D. Remember me to your family, will you
答案：
A. Will you buy me some stamps
(答案→)B. Would you please do me a favour
C. How about going shopping with me
D. Remember me to your family, will you
解析：回答中有what it is，这说明答话者并不知道具体是什么事。而A、c、D项三项中都说明了具体的事，与回答的话不相符。
