单项选择题

听力原文:W: Is this the bookcase you advertised?
M: Yes, it's our regular $ 9.50 bookcase. These are the last two. If you can use them both, you can have them for $15.
Q: How much can she save if she buys the two bookcases?
(17)
A.$5.00
B.$4.00
C.$6.00
D.$3.00

A.50
B.
Q:
C.$5.00
B.$4.00
C.$6.00
D.$3.00
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