It was a cold January morning. A man sat at a big subway station in Washington D.C. and started to play the    36    . He played six Bach pieces for about 45 minutes. During that time, since it was the rush hour, lots of people went   37    the station and most of them were on their way to     38     .

Three minutes went by and a middle-aged man noticed him. He began to     39     his pace (步伐) and stopped for a few seconds and then     40   away. A minute later, the violinist     41      his first dollar tip from a woman who threw the money without   42        walking. A few minutes later,     43      stopped to listen to him, but the man looked at his watch and     44    . He was afraid to be late for work.

During the 45 minutes the violinist played, only 6 people stopped and     45       for a while. About 20 gave him money but continued to walk at their normal pace. He     46      $32. When he finished playing, no one noticed it.

No one knew this,     47    the violinist was Joshua Bell, one of the best musicians in the world. Two days before his playing in the subway, Joshua Bell    48     at a theater in Boston and the seats averaged (平均为) $100.

This is a true story. Joshua Bell’s playing in the station was    49    by the Washington Post as part of a social experiment. One of the possible conclusions from this experience could be:   50     we do not have a moment to stop to enjoy the beautiful music, how many other good things are we missing?