A. What size do you wear B. I prefer the white ones C.May I help you D. How would you like to pay E. How much is this pair F. You may try it on S: ___ 1 ___, sir ? M: Yes, I want to buy a pair of shoes. S: Yes, please ! ___ 2 __? M: The size is 42. S: And what color do you like? M: ___ 3 ___. S: OK , here you are.__ 4 __. M: Thank you. Let me have a look.__ 5 __? S: 358 yuan. M: They fit me perfectly. I ’ ll buy this pair.