同义句转换 I could swim when I was 10 years old.

同义句转换 I could swim when I was 10 years old. i could swim when was 10 years old 同义句 I ____ _____ swim ___ I could swim when I was 5 years old .同义句：I could swim ___ __ I could swim when I was 10 years old. He could swim when he was 5 years old.同义句转换 I could swim when i was five yeas old .改成同义句 I could swim___ i could swim when i was six years old为什么用swim When I was five years old, I could play the piano well.的同义句 I could ride a bike when I was 5 years old（同义句） Jim could swim when he was five years old.（改同义句） Jim ____ __ he could swim when he was 5 years old同义句 kate could swim when she was four years old.同义句