听力原文:W: Professor Louis seems to think there's only one way 1o write a paper, and that
M: No kidding? She sure wasn't like that last semester.
Q: What can be inferred about Professor Louis?
(19)
A.She grades papers very quickly.
B.She isn't teaching this semester.
C.She didn't require any papers last semester.
D.She was more flexible last semester.