【题目】
A.50 dollars.B.40 dollars.C.60 dollars.D.55 dollars.
在线课程【答案】C
【解析】
【原文】
W: How much did you spend on your son’s piano class?
M: It was 50 dollars per lesson but now the price is raised by 20 percent.
Q: How much does one piano lesson cost now?