根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
― Can I help you?
－Yes, I'm looking for a sweater.
－ 1_____
－ I'm an extra large.
－ 2_____
－ Yes, that's nice. 3_____
－ Certainly, there is a changing room over there.
－ Thank you.
－ 4_____
― It's too large. Do you have a large?
― 5_____
― Thank you. I'll have it, please.
A. How does it fit?
B. How about this one?
C. Can I try it on?
D. Yes, let me have a look.
E. What size are you?
F. How would you like to pay? Yes, here you are.