He was old music write started was when he was这道题错在哪里?要写出因为所

He was old music write started was when he was这道题错在哪里?要写出因为所 tom started learning music when he was eight years old. Moart started writing music when he was four years old Mozart started writing music when he was four years old . Mozart started writing music when he was four years old. he started swim when he was four years old Mozart started wrting music when he was four years old的汉语意思 Mozart started writing music when he was four years old.这个句子 Lili start ___(write)music when he was four years old. he started swimming when he was four years old 等于 he started he started write plays when he was twenty-nine.write是不是写原形?请 He started drawing when he was three yeas old,and when he is