检查英语语病的，大神帮我看一下这三句话有没有什么语病

都不太对，都帮你改了：

We will use this invatation letter to apply another passport.
This passport is just for public mission and has none relationship with the work visa.
My company will take two months handling this passport, so we want you to change the date.
望采纳。

We will use this invatation latter to application another passport.中的application应该用动词形式apply,意思：申请。
This passport just for public mission and have none relationship with the work visa.
主语This passport后面要加系动词is.
My company handle this passport need two months,so we want you to add the date.
处理......需要两个月时间，可以改成：
To handle this passport, my company needs two months,或者：
It needs two months for my company to handle this passport,so ........
供参考。

正确表达是：
I will take this invitation letter to apply for another passport.
我要用这份邀请信去申请另一份护照.
This passport is only used for public mission.
这份护照只是用于公务.

We will use the invitation letter to apply another passport.