补全对话,每空一词。 A: Can I help you? B: Yes, I 1 a shirt for my son. A: What 2 does he like? B: Blue. A: What 3 this one? B: Let me have a look.Oh! It's too 4 ,do you 5 a small one? A: Yes, here you are. B: 6 7 is it? A: It's 80 dollars. B: OK. I'll 8 it.Thanks. A: You're welcome.