A、At a travel agency. B、In a bank. C、At a restaurant. D、At a library. A推断题。浏览选项可知，选项提供的都是具体的地方，可能考查对话发生的地点。在对话开始，双方相互问候过后，男士就直接询

M: Good morning.
W: Good morning. How can I help you?
M: I heard that you organize trips to different cities for overseas students. I’d like to know some details.
W: Yes, we run six trips every month: three during weekends, one Tuesday morning trip and two Wednesday afternoon trips.
M: OK, I see. Then what sort of places you choose to go?
W: Well, it varies, but always places of historical interest and also which offer a variety of shopping, because many students ask about that, and then we go for ones where we know there are guided tours, because this gives a good focus for the visit.
M: That sounds good. Do you travel far?
W: Well, we’re lucky here, obviously, because we’re able to say that all our visits are less than three hours’ drive.
M: How much does it cost?
W: Again it varies ― between five and fifteen pounds a head, depending on distance.
M: Ah ha…
W: Oh, and we do offer to arrange special trips if, you know, there are more than twelve people. And there will be a discount.
M: OK, I’ll keep that in mind. Then, how can I reserve a place?
W: We have put an application form on the internet of our company, and you can download the form, fill in it and send it to our E-mail address.
Questions 19 to 22 are based on the conversation you have just heard.
19. Where does the conversation happen?
20. Which is NOT the time when they organize trips?
21. How long is each trip in general?
22. Which of the following statements is NOT true?