When he was ten years old ,Tom lived byhimself改为同义句

When he was ten years old ,Tom lived byhimself改为同义句 英语一些问题when he was ten years old ,Tom lived by himself（改为同义句） 句型转换when he was ten years old,Tom lived by himself(同意句)Tom l he became a piaon champion when he was ten years old 改为同义句 when he was ten years old 的同义句 tom started swimming when he was five years old改为同义句 Tom has lived in the country since he was 10 years old.改为否定句 He has lived here for ten years改为同义句 he could use computers well when he was ten years old同义句 有关同义句~when he was ten years old Edison built a chemistry for When I was ten years old的同义句 改为同义句：He began to learn english when he was six years old.