M: Mrs. Turner, I didn't do my homework because I didn't understand it. ,F: Sit down, Ken. And I'll explain it as soon as everyone is quiet.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Thank you Mrs. Turner. (C) M: How was my homework, Mrs. Turner? (D) M: You are such a good classmate.
B