A、Neighbours. B、Acquaintances. C、Colleagues. D、Fellow passengers. D

W: Excuse me. Is this seat taken?
M: No, it’s not taken. Do you want to sit by the window?
W: Oh, no, thank you. I like the aisle seat better.
M: My name’s John, John Smith. Please to meet you.
W: I’m Mary White. How do you do?
M: Do you live in New York?
W: No, no. I’m from Florida.
M: I’m too. But didn’t you just get on?
W: No, no. I just changed my seat. A man next to me was smoking, and smoke really bothers me.
M: Do you have family in New York?
W: No, no. But I do have very close friends in New York City. We like to go to the theatre together. How about you?
M: Yeah. A son and his wife and their three children-my grandchildren.
W: You must be excited.
M: I can’t wait to see them.
W: Are you going to live with them?
M: Yes.
W: Permanently?
M: Well, they want me to, but it’s too early to know for sure. Some people don’t mind being alone. I do.
W: I understand. But tell me, why did you stop working?
M: I retired because... I wanted to be with my family. I didn’t want to be alone anymore!