There were not many people on the train. The Professor found a seat next to the window. he felt very tired, because he had run very fast to catch the train. He put his suitcase down. He was holding his hat and the papers he had read in the car.
you can't leave that there, said a voice. He looked round. a very angry old woman was siting on the other side of the train.
Sorry, what did you say? said the Professor. He had not heard what she said.