send a letter（）you.（）中填to还是for还是其他的?

send a letter（）you.（）中填to还是for还是其他的? a letter for me还是a letter to me a letter to sb.还是 a letter for sb. send to sth还是send for sth It`s my great honor to write a letter后面用to you还是for you 一封给我的信是 a letter for me还是 a letter to me who will post this letter for you?I（ ）中间添be going to还是will Can you ____(send)this letter for me?怎么填, be harmful ( )sb.括号里填to,of还是for,还是其他的介词? HERE IS A LETTER ___YOU(TO 还是FOR) HERE IS A LETTER ___YOU(TO 还是FOR)要准确 HERE IS A LETTER ___YOU(TO 还是FOR)急需