he___ ___ ___ play the piano when she was 5years old

he___ ___ ___ play the piano when she was 5years old she was ___ ___ play the piano when she was five years old.( my sister could play the piano when she was five years old 改 when kitty was 5 years old ,she could ride a bick改同义句___ ___ Mary could play piano when she was ten years old 这句话哪里错了? 改同义句：He began to play the piano when he was 5 years old.He b 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 1.I started to play the piano when I was six years old.(改为同义 I started to play the piano when I was six years 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 Could Mary play the guitar when she was 5 years old?----Yes,