读一读,写句子。 A. How much are they B. What size C. Can I help you D. I'll take them E. What colour A: 1.____________? B: Yes, please. A pair of jeans for me. A: 2._____________? B: Size 20. A : 3.____________ ? B: Blue. I like blue jeans. 4._______________? A: They are eighty yuan. Are they all right? B: OK. 5.______________.