短文填空。 Mr. Jones liked to be comfortable, so every time he took a train, he used to put a bag on the seat 1. to him and pretend that it belonged to a 2. who had gone to buy some cigarettes at the station. One day, Mr. Jones did this 3. when the train was very crowded. When nearly all the seats were taken, an old man 4. on the train. Looking at the bag, he asked, 'Is this seat taken?' 'Yes.' said Mr. Jones, 'it belongs to a friend of 5. who has gone to buy some cigarettes. He will 6. back soon.' Pretending to worry about his friend, he looked out of the window. 'All right,' said the old man, 'I'll just sit here until your friend 7. , if you don't mind.' Mr. Jones couldn't say anything. Just then the train 8. to move out of the station. 'Well,' said the old man, 'what a pity! Your friend 9. the train, but his bag is still here.' 10. Mr. Jones could say anything, the old man took the bag and threw it out of the window.