A: How much is this belt?
B: Which one? oh, that one is $30. 
A: It's so expensive. We only have $20. How much does that baseball cap cost?
B: It costs $10. 
A: It is much cheaper. But Daniel prefers those green caps. Those are $25. 
B: How about these sweatpants?
A: Oh, no. Those aren't his style. Daniel likes cool clothes.
B: Buying gifts for people isn't easy. How about these sunglasses? 
A: Yes, they're great. Let's buy them. They cost only $10.