S: Yes, I was about ten minutes late.
T: Why were you late? Did you oversleep?
S: No, it was because there was something wrong with the trains.
T: What sort of trouble was it? Was it a mechanical failure?
S: I don't really know, but I don't think so. Just before we go to Shinjuku, the train stopped and
didn't move for a while.
T: How long was it stopped?
S: For about fifteen minutes. Quite a few trains were lined up in front of and behind us.
T: That must have been something.
S: It was raining then, and so all the windows were closed. And it was very hot inside the car.
T: Was the train crowded?
S: The car I was in wasn't very crowded, so I was all right. But it must have been bad for those in
crowded cars.
A student is expectiong to her teacher why she was late. But she doesn't know why the train trouble.
