阅读理解
Ms. Li: Good morning! Can I help you?
Tom: Yes, please. I want a pair of trousers.
Ms. Li: What colour do you like?
Tom: I like blue.
Ms. Li: How about this one?
Tom: Yes, I like it. How much is it?
Ms. Li: It's 598 yuan.
Tom: That's too expensive.
Ms. Li: What about this black one?
Tom: It's OK, too. How much is it?
Ms. Li: It's 398 yuan.
Tom: OK! I'll take it. Here is the money.
Ms. Li: Thank you.