Life is great when she was six哪有错误

Life is great when she was six哪有错误 Life was great when i was six Life was great when i was six years Life is great when I was six years old.哪里错了 when she was six years old,she showed a___calculating abilit Anna could play the piano when she was six Linda went to school when she was six years old . Lucy could look after _(self) when she was six. When I was six years old I visited the Great Wall ,为什么when后面 kate ___swim when she was six years old.she was so clever. 2.She could play the violin when she was six(改为同义句) She ____ Helen was good at____the piano when she was six.A.plays B.to