One day Mozart saw an old blind street- performer playing the violin at the street corner.He recognized the old man was

One day Mozart saw an old blind street- performer playing the violin at the street corner.He recognized the old man was playing one of his compositions.The old man played for some time but the hat in front of him was still empty---- nobody had put any money into it.Mozart asked the old man,“Do you often play compositions by Mozart ” “Yes,sir.” replied the old man.“Now everybody knows Mozart and likes his music.” 74 “Do you make a living by playing the violin ” The old man said he did.Mozart took over the violin from the old man and began to play.
75.He played so well that all the passers- by stopped to listen to the wonderful music and soon the old man was full of admiration and felt surprised that a man could play so well.He asked Mozart,“Who are you ,sir?” “ Your colleague(同事),a poor musician like you.” Then Mozart gave the violin to the old man and went away.
A.根据短文内容回答下列问题
69.What did Mozart see in the street?
70.Why was the hat in front of him still empty?
71.Whose composition did the old man play?
72.All the passers- by were interested in the music that Mozart played,weren’t they?
73.Did the old man recognize Mozart at last?