听力原文:M: This book is$ 2.00 and the blue one is a dollar more.W: The red one is twice a
听力原文:M: This book is $ 2.00 and the blue one is a dollar more.
W: The red one is twice as much as the blue one.
Q: How much is the red book?
(17)
A.$2.00.
B.$6.00.
C.$4.00.
D.$5.00.