Talking to a Teacher

Teacher: Good morning. Sit down, please.

Student: Good morning. Thank you.

Teacher: Do you have your homework today?

Student: Yes. Here it is. I did it at home.

Teacher: Good job. Do you have any questions?

Student: Yes. I don't understand exercise 3.

Teacher: Okay. Look here. It is not difficult.

Student: Oh, I see now. Thank you very much.

Teacher: You are welcome. You are doing very well.