对话1
A: I need some flowers for my wife. It's her birthday.
B: Very well. We have some fresh red roses.
A: How much are the roses?
B: $20 per dozen.
A: That sounds like a good deal.
B: Yes, they're on sale today.
A: I'll take a dozen.
B: Splendid. Will there be anything else?
A: No, the roses will be fine.
B: I'm sure your wife will love them.

对话2
A: My wife's birthday is today. I need some flowers.
B: We have lots of fresh red roses.
A: How much do the roses cost?
B: $20 a dozen.
A: That sounds good. Last year I paid $30.
B: Yes, you came here on the right day. They're on sale today.
A: Give me a dozen.
B: Very good. Would you like anything else?
A: No, I'll just give her the roses and a card.
B: She should be very pleased with these roses.

对话3
A: I need to buy some flowers for my wife.
B: Perhaps you'd be interested in red roses.
A: What would the roses cost me?
B: They're only $20 a dozen.
A: I like the sound of that.
B: Yes, that is today's sale price.
A: A dozen will be fine.
B: Is there anything else you'd like to get?
A: No, thank you.
B: These roses should make your wife very happy.