补全对话。 A: Can I help you? B: Yes, please. 1._____. But what kind of flower shall I buy, roses or carnations (康乃馨)? She likes red roses best, and today is Mother's Day. A: I think carnations are special and better today. They show happiness, sweetness and love. They are for mothers. B: All right. Can I have a look at those carnations? A: Sure. 2._____? B: Red. A: What about these? B: Great. 3._____? A: 30 yuan. B: OK, 4._____. Here is the money. A: Thank you. Here's the change and a card from our shop to your mom. Best wishes to her! B: 5._____.