听力原文:M: This is the second time you have been late this week, Helen.W: I'm sorry, sir.
听力原文:M: This is the second time you have been late this week, Helen.
W: I'm sorry, sir.
M: You'll have to do better than that, or I might find it necessary to let you go.
W: It won't happen again, I promise.
What is the relationship between the speakers?
A.They are friends.
B.They are teacher and student.
C.They are employer and employee.