Dialogue:

M: I am afraid there won't be time to do another tooth today. Make sure you don't eat anything like stakes for the next few hours, and we'll fill the other cavity tomorrow.

W: All right. Acutually, I must hurry to the library to return some books.

Question: Where does the conversation most probably take place? 

- At a bookstore.

- At the dentist's.

- In a restaurant.


At the dentist's.