Eric has been singing since he was 8 years old改为同义句

问题描述:

Eric has been singing since he was 8 years old改为同义句

有没有变化格式要求?Eric has been singing since he was 8 years old.= Eric began/started singing when he was 8 years old.= Eric began/started singing at the age of 8.注:singing也可以换写成to sing.如果...