Questions 5 to 8 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now, listen to the conversation. What is the TRUE situation in the American bars
A．They are always very crowded and not safe. B．Drinks are paid when you get them. C．There are always people who sneak out without paying the bill. D．Unexpected events usually occur after the costumers got drunk.