I have just return from Dalian.同意句 I have just ____ ____from

I have just return from Dalian.同意句 I have just ____ ____from I have just received a letter from my brother.（同义句）=I have j just you want just i have I have just received a letter from my brother, Ti I have just receiverd a letter from my brother. I have just came back from work.哪错了? I have just come back from USA,这句为什么不用came? I just have one ___question I have just done it. I have just called you. I have Just come back I have just been accustomed