【题目】How much did the jeans cost before the sale?
A. 30 dollars B. 50 dollars C. 60 dollars
在线课程【答案】C
【解析】
M: The clothing store is having a big sale. Everything is 50% off.
W: Really? So those jeans that I like will only be 30 dollars. That’s great!
此题为听力题，解析略。