A、He wants to do something special there. B、He likes the activities in the club. C、It will be helpful for his job-hunting. D、It

W: Would you like to join the Olympic Volunteers’ League?
M: Am I crazy? (19) I just quitted the Students’ Counsel. I don’ want to be as busy as before. I’ve given up a big chance of getting scholarships for that.
W: No, joining it won’t take you much time. It only has activities on the weekends.
M: Really? That’s good. I was just wondering about how to spend my free time on weekends.
W: Come on, you won’t regret about the experience. It’s different from other student clubs or unions.
M: What’s the difference?
W: We can do something for the upcoming Olympics. Isn’t that special?
M: Not really. (20) I’d rather join the Businessmen’s Club so that my experience will be helpful when I look for jobs in the future.
W: That’s also a good choice. But the Businessmen’s Club just hold some boring activities, you know, speeches, competitions...
M: But you can learn a lot of things from the activities and it’s related to our major.
W: You can also learn a lot in Olympic Volunteers’ League. You will have the chance to learn how to communicate, how to arrange an activity and how to cooperate with your group members.
M: What activities does Olympic Volunteers’ League have?
W: We will be voluntary guides, translators in Olympic Park and other nearby places.
M: Does that mean I have lots of chances to practice my English?
W: You can say that again.
M: (21) OK, you win. Just tell me how to get enrolled for that club.
19. Why did the man refuse to join the Olympic Volunteers’ League?
20. What does the man say about joining the Businessmen’s Club?
21. What can we learn from the conversation?