将下列句子按正确顺序排列, 组成对话。 A. Yes, please. I want a shirt. B. How much is it? C. Can I help you? D. I'll take it. Thank you. E. It's thirty dollars. F. You're welcome. G. Here you are. H. What color do you want? I. White. 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____