3 quick thinking思考迅速，敏捷的思维One day, Tony met his friendAlan, in the street. Tony was quite rich, but Alan was poor. The two boys walked along the street together. They talked about many things, Tony liked to listen to music and he told Alan about some new songs. Alan liked reading and he told Tony about some new books. They had the same friends, and they talked about these, too. Then Tony remembered something, I lent you ten dollars last week, he said. Can you give it back to me
