Here---two letters---you.A are,to B is,for C is,to D are,for

这是倒装句,给谁的信,习惯上用for
1.
Here are some registered letters for you .
这儿有你几封挂号信
2.
Are there any letters for me?
有没有我的信?
3.
He writes letters for me occasionally.
他偶尔写信给我.
4.
There are some letters for you.
有你的几封信.