Where does the conversation probably take place?
Okay, Mary. It's time to go.<br />Waiter, can I have the bill?<br />Frank, let's split the bill this time.<br />No, it's my treat. I really want to thank you for your help with my work.<br />Oh, you are so kind.
A . In the classroom.
B . At a bus stop.
C . At a restaurant.
答案:C