两道英语题~We have been neighbors for ten years,so I know him ___

I have been corresponding ___ him for many years. I have been living in London for more than ten years,so I ha I have been playing piano for ten years.同义句 I_____(know)him for ten years. I have known him for ten years的同义句I _____ ____ ____him ten y I have know him for about ten year 画线：for about ten year （对划 英语完形填空 “We’ve been good friends for so many years.And I don’ 这个句子We have been studying English for whole the ten years.有什 we ____(be) friends for the whole ten years答案是have been 我觉得应 I have been working for more ten years.这里的for是否可以去掉呢 I have lived in Beijing for ten years,so I have got used to I have been an engineer for more than ten years,but I was on