用方框中词的适当形式填空。(5分）

athlete,  train,   successful,   write,    funny

Last Wednesday, I had tennis _________ with the school team. It made me tired.
Bill is ________ than the other boys in my class.
Kobe is always ___________ in P.E. class.
Yesterday’s talent show was a great ___________.
Mozart started ___________ music at the age of four.