We arrived here twenty years ago.We --- ---here for many years

We arrived here twenty years ago.We --- ---here for many years

We have been here for many years

have been
表示现在完成进行时，已经在这里居住了许多年
满意记得引用哦~

应该是填have been，是现在完成进行时，表示已经在这里居住了很多年