我自从五岁就开始学习英语了(四种)英语

问题描述:

我自从五岁就开始学习英语了(四种)英语

I have been studying(或I have studied) English since I was five years old.
I began to study English at the age of 5.
I began to study English when I was five years old.
It was at the age of 5 that I began to study English.