1 . 听下面一段较长对话，回答以下小题。
1. Why did the man go to Bangkok?

A．To work.

B．To visit a friend.

C．To go sightseeing.

2. How did the man get to the airport at last?

A．By taxi.

B．By car.

C．By truck.

3. What do we know about the man?

A．He got home at 3:00 a. m.

B．He left his house keys in the hotel.

C．He waited four hours for the next flight.