【题目】How much should the man pay if he takes four discs?
A.24dollarsB.18 dollarsC.16 dollars
在线课程【答案】C
【解析】
【原文】
M: How much are these discs, please?
W: 2 for 9 dollars. They used to be 6 dollars each.
M: Can you make the price lower?
W: Well, if you take all of the 4 discs, it’s only 16 dollars.