对话排列：(A How much is this hat.) (B I'lltake it .) (C Can I help you?)(D It's twelve dollars)( E Yes,please ,I want a hat.)(F Here you are)(G You're welcome)(H thank you)(I We have hats in all colors)

对话排列：(A How much is this hat.) (B I'lltake it .) (C Can I help you?)(D It's twelve dollars)( E Yes,please ,I want a hat.)(F Here you are)(G You're welcome)(H thank you)(I We have hats in all colors)
对话排列：(A How much is this hat.) (B I'lltake it .) (C Can I help you?)
(D It's twelve dollars)( E Yes,please ,I want a hat.)(F Here you are)(G You're welcome)(H thank you)(I We have hats in all colors)

对话排列：(A How much is this hat.) (B I'lltake it .) (C Can I help you?)(D It's twelve dollars)( E Yes,please ,I want a hat.)(F Here you are)(G You're welcome)(H thank you)(I We have hats in all colors)
C.
E.
I.
A.
D.
B.
F.
H.
G.