I could swim iast year 的同一句

I could swim when I was 5 years old .同义句：I could swim ___ __ I began to learn to swim when I was five year old的同义句 I could swim at the age of seven同义句 At the age of 10,I could swim同义句 I could swim at my age of five .同义句 i could swim when was 10 years old 同义句 I ____ _____ swim ___ I could swim when i was five yeas old .改成同义句 I could swim___ the boy------(can ,could,was could)not swim last year I could swim at the age of five.同义句转换 I （）（）to swim when I w 同义句转换 I could swim when I was 10 years old. I can swim.同义句：I ( ) ( ) ( ) swim i could swim _______the age of ten.