听力原文:Shall we cancel our subscription?(A) Only $15 a year for 12 issues.(B) It's avail
听力原文:Shall we cancel our subscription?
(A) Only $15 a year for 12 issues.
(B) It's available by prescription only.
(C) Yes, go ahead. We don't need it any longer.
(15)
A.
B.
C.