A: Good morning, David.
B: Good morning, Cindy ?
A: My first class is math. It's at 8:00.
B: ?
A: No, I don't like it. It's boring. ?
B: I like it and I think it's interesting.
A: ?
B: No, my favorite subject is history.
A: History is interesting. ?
B: Mr. Wang. He is a nice teacher and we like him so much.
