A、Wife and husband. B、Salesman and customer. C、Teacher and student. D、Employer and employee. A整篇对话的氛围体现出两人的关系很亲密，浏览四个选项，只有A合适，故选

M: When in Rome, do as the Romans do, they say.
W: What do the Romans do?
M: They live in Rome, of course, and go to work by car or bus. But sometimes it takes too long that way because of the traffic jams, so they walk.
W: In other words, the Romans do what everyone else does.
M: Yes, but they do it differently. Everything is different.
W: What do you mean?
M: Well, the climate is different for a start. It doesn’t rain so much as it does in England. The sun shines more often.
W: I envy them for the sun.
M: (16) I know. You hate die rain, don’t you?
W: I certainly do.
M: And a Roman really loves life. They always eat spaghetti and drink wine.
W: Not always, but they like a good meal. (17)Lots of tourists go to Rome just for food.
M: Sure.
Q15: What’s the relationship between the two persons?
Q16: What does the woman hate?
Q17: What do lots of tourists go to Rome for?