补全对话
M: The summer vacation is coming. What are you going to do, Mary?
W: I’m going to have a trip.
M: 68                             
W: Hainan province.
M: 69                             
W: My parents and my brother.
M: 70                             
W: First we’ll fly to Haikou then take a bus to Sanya.
M: 71                             
W: About two weeks.
M: 72                             
W: Nearly ten thousand yuan.
M: That’s lots of money. Have a good trip!
W: Thank you very much!