题目内容：

阅读下列材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。答案写在文中题号后的横线上。

Ludwig van Beethoven was born in Germany. He showed1.(music) talent 2.an early age. He learned how 3.(play) the violin from his father,4.was a singer. Mozart met Beethoven and 5.(impress) by him.Beethoven met Haydn in 1971. After they had known each other for many years,  Haydn encouraged 6.(he) to  move to  Vienna.  Beethoven became very popular in the Austrian capital and stayed there for 7.rest of his life. As he grew 8.(old)，he began to go deaf . He became 9.(complete) deaf during the last years of his life，10.he continued composing.