情景交际。 (5分)
A: Good morning, ____
B: Good morning. I want to buy a football.
A: Just a moment. ___.
B: How much is this one?.
A: It is 50 yuan.
B: Oh really, _____.
A: ___.
B: How much does it cost?
A: It is 30 yuan. And what do you think of it?
B: It is OK. But do you have other colours about this kind?.
A: Yes, they are over there. How about the blue one?.
B:_ ___.

A. That is too expensive. B. What about that one? C. Can I help you? D.OK. I will take it. E. There are some new footballs here. Please take a look.