听力原文：W: Hey, Mike! Where are you off to? M: I'm heading for the Price Chopper. I do a lot of the family shopping since my mom got a part-time job. W: Can you give me a ride? I want to get some drinks. M: Sure! Let's go! W: Do you enjoy shopping? M: Enjoy? I don't mind admitting I hate shopping almost as much as I hate algebra. Correction! I hate shopping even more than I hate algebra. W: Yipe! A loose shopping cart! M: Today I'm proud of myself. I remembered to bring along my shopping list. W: You're becoming an experienced shopper) M: Gosh! Wrong shopping list! W: I'm sorry to hear that. M: But it's okay! I'm sure I can remember most of the six or seven items that my mom wanted me to pick up. W: Watch out for the cart, Mike! M: Thanks! You know, as I scamper through the aisles I can always successfully avoid the flying carts of my fellow shoppers. W: Whew! That was close! M: You see! I manage to pick up what I want in record time! W: Great! Let's head for the express line. Everyone knows express lines move much faster than regular lines. M: All right! Oh, unfortunately, this express line doesn't move at all! W: The next line has one shopper. Let's switch lines! (20)