can I help you,sir?Yes.____.

题目

can I help you,sir?Yes.____.
can I help you,sir?
Yes.____.
what about a glass of milk?
No,I dong't like milk.

答案

yes后面跟你想他做的事情
根据后面的文章1.I want something to drink.2.Could you give me some drink?(用could客气点)