从A-E选项中选择句子填空，补全对话。

A. How about this one?

B. Show me a cheaper one, please.

C. I want a shirt with a collar.

D. Can I help you?

E. How much is it?

Cashier: l_____

Billy: Yes, please. 2_____

Cashier: A shirt with a collar. 3_____

Billy: Oh, it looks great. I like it a lot. 4_____

Cashier: It's 110 dollars.

Billy: Oh, it’s too expensive. I have only 30 dollars. 5_____