I've been learning English for three years什么意思

I've been learning English for three years什么意思 ①We have been learning English for three years.(改为同义句） 英语难题!I have been learning English for two years =It is years I have been learning English for two years.=It's two years _ I have been learning history for morethan three years (对划线部分 I have been learning english for years,but I still can’t com 我说I have been learning English for many years.我的外教说换成studyin Question: I have been learning English for about 7 years. &n 请问"I _ been learning English for four years."中,（ ）应选哪个?A.hav he has been learning english for 2 years in college. He's been learning English for six years. 同义句He has been learning English for six years