补全对话。(30分)
A: (1)____ Can I help you?
B: Yes. I (2)____ a schoolbag.
A: (3)____do you like best?
B: I like the blue one. Its colour is (4)____.
A: All right.(5)____ It is 15 yuan.
B: (6)____ Here is the money. Goodbye.
A: Thank you. Goodbye.
A Which one B Good morning. C very beautiful
D Here you are. E I will take it. F want to buy