主题句：Is there a discount on the TV? 这台电视机打折吗？
SCENE 1
Customer: Is there a discount on the sofa bed? 这沙发床有折扣吗？
Salesman: There is a 20% discount. 可以打8折。
SCENE 2
Customer: Excuse me,sir. Is there a discount on this pair of shoes? 劳驾，这双鞋子可以打折吗？
Salesman: Oh, I'm afraid there is no discount. They're new arrivals. 噢，恐怕不行，它们是刚到的新货。
SCENE 3
Customer: Is there a discount on the bookshelf? 这种书架可以打折吗？
Salesman: Yes,most of them have a 10% discount. 可以，大部分可以打到九折。
SENTENCES
1. Is there a discount on the air conditioner? 这空调有折扣吗？
2. Is there a discount on the summer clothes? 这些夏季服装有折扣吗？
3. Is there a discount on the sunglasses? 这太阳镜有折扣吗？
