Part B Directions: You will hear four dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE. 听力原文：W: I've just. read a curious fact. Did you know that people who spend less than ten minutes in the drugstore are five times more likely to make a purchase than those who spend half an hour there? M: I saw that article too. But I think if someone runs into a drugstore for ten minutes, it' s usually to make a specific purchase. W: And someone who spends more time there may be just looking? M: Exactly. Haven' t you ever gone into a store thinking that you buy something and then talk yourself out of it? W: Yes, I have, especially when I thought I could get it for less elsewhere or I really didn' t need it after all. M: Exactly. But if you run into buying something specifically and have very little time, you pick it up, pay for it immediately and then leave. W: That's true. Maybe we should learn a lesson from that. Take your time and you'll spend less money. M: I doubt that it will be true in all sources, though. You know, in a department store, for instance, you may see a sweater or something you never intended to buy and buy it because you' ve had time to look around. What starts the conversation?