I have studied English for five years __________ I was ten y

I have studied English for five years __________ I was ten y I have studied English for five years.(转为同义句）, I have studied English s____ I was six years old. I have studied English for 7 years.(同义转换) I have studied English for 7 years.同义句 改正句子中的错误.i have studied English for three years since i had I have studied English for three months. 改错：we have studied English for about six years since I have What's more ,I have studied English for seven years 转化为同义句 I have known him for ten years的同义句I _____ ____ ____him ten y They have studied English for about five years.（保持原句意思不变） Is this the school ( ) I have studied for three years?