when,was,I,could,four,I,sing,songs连词成句

could she swim when she was fou作否定回答 I could look after ______ when I was six i could swim when i was twewe(同上） I could dance when I was five的同义句 I could dance【】【】【】five. I could dance when I was five的同义句 I could dance【】【】【】five When it was that i could finish writing the report 同义句转换 I could swim when I was 10 years old.I could swim----- ------10.I could swim-----10---- ------. I could play football very well when I was younger.为什么不用when I was young ,两者有何区别 I could swim when I was 5 years old .同义句：I could swim ___ ___ ___ ___5. 改为同义句When I was a boy,I could swim very well. ------ ------ ----- ,I could swim very well. I could swim when i was five yeas old .改成同义句 I could swim_____ ____ ____ _____five. i could swim when i was six years old为什么用swimi could swim when i was six years old为什么用swim而不是swimming I could ride the bike when I was your a ____. 同义句 I could ride a bike when I was young. when,was,I,could,four,I,sing,songs连词成句 I could read by myself when i was four 同义句 I learned to laugh when all I could do was cry.”是什么意思? he said : I could swim when i was very yong 若对怎么变间接引语