按要求改写句子英语快

问题描述:

按要求改写句子英语快
1、When she was five ,she could play the piano very well
She could play the piano very well______ the _____ of five

at和age
第一句说when she was five当她五岁时,第二个句子少这个成分,at the age of 是固定搭配,表在几岁时