Could Mary play the guitar when she was 5 years old?----Yes,

Could Mary play the guitar when she was 5 years old?----Yes, She __ __ __ play the guitar when she was five years old （她五 Mary could play piano when she was ten years old 这句话哪里错了? When the girl was six years old,she could play the paino.改为同 my sister could play the piano when she was five years old 改 he___ ___ ___ play the piano when she was 5years old she was ___ ___ play the piano when she was five years old.( When I was five years old, I could play the piano well.的同义句 he could play the piano well when he was seven years old的同义句 When Mozart was five years old,he could play the violin.（改为同 she could swim in the river when she was 6years old改为同义句 英语句型转换求答案She could play the piano when she was five years ol