听力原文:M: I understand that the extra mathematics course this semester is outstanding.W:
听力原文:M: I understand that the extra mathematics course this semester is outstanding.
W: It used to be. But now Prof. Smith has retired.
Q: What does the woman imply?
(19)
A.The course may not be so good now.
B.Prof. Smith has retired.
C.The course is definitely worthwhile.
D.The course is even more interesting now.