阅读下面短文，并用英语回答问题(请注意每小题后面的词数要求)。

    On a Wednesday night, a young man was playing the guitar at the underground station. Some people stopped and put some money into his hat.

    The next day, the young man came to the underground station again. There was a large piece of paper next to his hat. It said，"Last night, a kind man named Chris put something important into my hat. Please come to get it back soon."

    About half an hour later, an old man came and the young man said，"Yes, I knew you would come back."

    "What did you lose？"asked the young man. "$800，000，"answered the old man.

    Then the young man took out a check(支票)and gave it back to the old man. The old man was so happy and thanked the young guitar player.