听力原文:W: I want to send this letter to Canada by airmail.M: That'll be ten yuan.Q: How
听力原文:W: I want to send this letter to Canada by airmail.
M: That'll be ten yuan.
Q: How much does it cost to send the letter to Canada by airmail?
(19)
A.Ten dollars.
B.Ten yuan.
C.Five yuan.