I've just received a letter ____one of my Australian friends

I've just received a letter ____one of my Australian friends I'VE RECEIVED YOUR LETTER JUST NOW I have just received a letter from my brother, Ti i just won the match i have just received a letter from my b I have just received a letter from my brother.这句话中 just和 hav I have just received a letter from my brother.（同义句）=I have j I have just received a letter from my brother,Tim.He is in A 新概念英语解析.I have just received a letter from my old school,inf I just _____(received )a letter from my brother , Tim .划横线部分 解释句子成分:"I have just received a letter from my brother." I have just received a letter from my brother,Tim..语法错误 I have just received a letter from my brother ,tim 一定要用完成式吗?