根据对话内容，从对话后的选项中选出能真入空白处的最佳选项。选项中有两项为多余选项。

（Sh＝shopkeeper　　　Li＝Miss Li）

Sh: Good morning!1____________

Li: 2____________

Sh: What kind do you like?

Li: I want some cotton ones.

Sh: 3____________

Li: Blue.

Sh: What about this one?

Li: 4____________

Sh: Fifty yuan.

Li: Hmm…Do you have any other ones in that size?

Sh: 5____________ This way ,please. Please take your time.

A. What colour do you like?

B. What can I do for you?

C. Do you like this one?

D. I'd like two sweaters.

E. How much is it?

F. Thank you!

G. Certainly!