听力原文:M: Our professor is iii today, so we have no classes.F: Isn't that nice? Do you k
听力原文:M: Our professor is iii today, so we have no classes.
F: Isn't that nice? Do you know how long he will be absent?
What is the possible relationship between the two speakers?
A.Husband and wife.
B.Teacher and Student.
C.Classmates.