大学四级对话理解

大耳朵英语　 http://www.ebigear.com　 2003-08-30 12:03:48　 【打印】

A)$150.
B)$100.
C)$300.
D)$200.
W: Our rent is now $ 300 a week.
M: I know. It’s exactly one-third more than it was when we first moved in.
Q: How much rent had been paid at first?