Questions 11 to 18 are based on the conversation you have just heard.

A．A friend of his gave him the tickets as a present.
B．A friend of his sold him these two tickets.
C．He got the tickets free from charge from "Pepsi".
D．He bought the tickets at a "black ticket market".

A．The phone number you need to know is not in your phone book.
B．You want to make a long distance call.
C．You don’t know the long distance rates.
D．You need to know how to put the money in the slot.