Read the following conversation and answer the question.

M: Oh, hi, Fred! I didn't know whether to save you a place or not. Why are you so late?

M: It's our maths teacher. She always keeps us in class until ten past ten.

W: Doesn't she know that you're supposed to get out at ten?

M: I guess so. But she never looks at her watch. She just keeps talking.

W: Don't the students complain about it? I would say something.

M: No. Everybody is too polite.

W: Well, you could try and talk to her.

M: Maybe. But I'm afraid she might feel hurt.

W: Well,it all depends on how and when you say it. If you tell her about it in a friendly way when she's not busy, she might be thankful. She might even ask you to remind her of the time in the future.

M: Really? That would be wonderful. Thanks for your advice.

Question: Why is the man late? 

- He forgot to look at his watch.

- The maths teacher kept him in her office.

- The maths class lasted longer than it should.


The maths class lasted longer than it should.