根据情景内容，在空白处填入合适的单词。
Salesman: (1)_______I help you?
Customer: Do you have the book called Gone with the Wind?
Salesman: One moment, I will search on the comput-
er... Yes, we do.You can find one on the second shelf in the literature (2)____.
Customer: Good! How (3)________is it?
Salesman: 30 yuan. You can get a 10% (4)________if you are a member of the shop's reading club.
Customer: Sounds great! I like reading and I will join the club.
Salesman: Please fill in this form and (5)________27 yuan for the book.
Customer: OK, thank you.