听力原文：M: Excuse me, do you mind answering a few questions? W: No. M: Um firstly, do you ever eat fast food? W: Yes, yes, I do. M: What kind of food do you normally eat? W: Oh, err, you know, burgers, sandwiches, the usual MacDonald's stuff, well sometimes a pizza. M: Oh, right. And how often do you eat fast food? Every day, more than once a week or less than once a week? W: Er, well Monday to Friday when I'm working, but not usually at the weekend. M: And what time of the day do you eat fast food? W: Well, at lunchtime, um, you know I sort of go out and get a burger or sandwich. M: Oh right. Do you only eat it as a main meal or do you snack between meals? W: Only as a main meal. M: And what do you think of fast food? Is it convenient? W: Oh, definitely. That's the main reason I eat it. M: Right. Do you think it tastes good? W: Yeah, am, I mean, not as good as food like in a restaurant, but it's not had. M: Do you think it is an expensive way of eating? W: Yes, but you have to pay for the convenience, you know, most people can't resist the speed of it. (23)