单项选择题
[听力原文] M :The typewriter costs 85dollars ,but I have only 55dollars. W: I have 40dollars. I can lend you.
A.She is going home. B.She is typing the letters. C.She is waiting the paper. D.She is reading the letters.
A.In a library. B.In a post office. C.In a bookstore. D.In a bank.
A.25 dollars. B.30dollars. C.60dollars. D.50 dollars.