综合填空。 Do you know Mark Twain? He was a g 1 American writer, and he was also a f 2 speaker (演讲家). He liked to tell f 3 stories to make people laugh. He also liked to play jokes on(戏弄) his friends. Once Mark Twain traveled with his friend b 4 train. His friend lost his money, so he asked Mark Twain to buy a train t 5 for him. 'But I don't have e 6 money to buy two tickets,' said Mark Twain. His friend didn't know w 7 to do. 'You can hide u 8 my seat when the conductor(检票员) comes to check the tickets.' Mark Twain said to him. When the conductor came to check the tickets, Mark Twain gave him two tickets, one for himself (他自己) and one for his friend. He said to the conductor,'My friend is a s 9 man. When he t 10 on a train, he doesn't like to sit on the seat. He likes to lie on the floor under the seat.' Everyone in the train looked at his friend under the seat and laughed.