What is the woman’ s reply?

M: Has Professor Arnold from Sydney University arrived?
W: I’ll have to check. Then I’ll get back to you straightway.

M: Good morning. Mary, how’s it going?
W: Pretty good, Bill. How about you?
M: Oh. I’ m OK. How is that English class you’ re teaching?
W: It’ s going really well. I have a great class this year. I’ ve got 30 students.
M: That’ s good. I love to teach English. I’ m only teaching history now.