E. Who said the questions and statements below? Write S (salesperson) or C (customer).  (Ai đã hỏi và nói những câu dưới đây? Viết S (nhân viên bán hàng) hoặc C (khách hàng).)1. Can I help you?  S7. Are they better? ____2. I'd like to buy some blue shoes. C8. How much are they? ____3. Do you have anything less formal? ____9. Do you have anything less expensive? ____4. Can I try them on? ____ 10. What about these brown ones? ____5. What size are you? ____11. I'll take the blue ones. ____6. Do you have a bigger size? ____12. Are you paying with cash or by card? ____