A、Because many people want to stay in shape. B、Because he wants to take every chance to improve his health. C、Because many peopl

W: (12) Excuse me, sir. Do you have a minute? I am a working staff in this airport. I’d like to have an interview with you on the future improvement of our facilities.
M: I’ve got plenty of time, so just shoot.
W: Wonderful. Are you here taking a flight or meeting someone?
M: I am here transferring from my previous flight to the next one which is due in 4 hours.
W: I see. How often do you travel by plane then?
M: Quite a lot. I guess about 30 times a year including both business trips and holiday trips.
W: Oh. What is your suggestion on improving our facilities inside the airport then?
M: Well. (13) I suggest something like a mini-gym should be built in the future. You know, many people take long flights. They can easily get exhausted. A small gym which includes massaging service would be lovely.
W: That is a good suggestion. Anything else you’d like to see in the airport?
M: Then I would further suggest more green plants should be grown here which can relieve the discomfort of our eyes.
W: I’ll write that down. How about the service on the plane? Anything you want to add to the current service?
M: Er.. I would like to see more varieties of the food offered by the plane and (14) if it is possible, more fruits will be served. The seasonal ones will do.
W: How about the newspapers and magazines? Should we improve on that too?
M: (15) I think so far so good but I do suggest more hot movies be played there.
W: Thank you for your marvelous suggestions.
Questions 12 to 15 are based on the conversation you have just heard.
12. What is this conversation mainly about?
13. Why does the man suggest building a gym providing massaging service inside the airport?
14. What kind of fruits does the man advise the plane to offer?  
15. What does the man think of the newspapers and magazines on the plane?