担保人与证明人有什么区别?甲欠乙钱,打有欠条,我是证明人.

应该是有物的担保人丁先行承担,如果甲能足额受偿,则丙不承担责任,如不能,则不足部分由保证人丙承担责任.答案有点问题.

实践中担保会涉及到一些复杂的人际关系或财产关系：
比如，甲找到乙借钱，但乙与甲关系一般，要求担保，甲于是提出用自己的汽车做抵押，但因为抵押不转移占有，乙担心即使抵押万一甲将汽车撞毁或将汽车隐匿，自己还是有可能实现不了抵押权，于是乙依然不同意借钱，这时甲找到了关系较好的丙，由丙做保证人，因丙有固定工作，收入颇丰，乙欣然同意，但丙当然不是十分愿意，这时甲就提出用汽车给丙做抵押，此为反担保，因甲丙关系还不错，既然甲都提出用自己的汽车做抵押了，丙也就不好推脱，于是反担保就成了。
所以实践中反担保成立的情形多数是债权人对担保的质量要求较高，而担保人对担保的质量要求不高，债务人又拿不出较高质量的担保来满足债权人，只能满足担保人的情形。

I am sorry my father have traveled since half a month ago, it is impossible to sign a guarantor agreement. Therefore, I will be later sent you the material. I hope you can understand. I am really sorry for such a long time's delay. But please do not doubt my sincerity.

保证用词准确,考究,得体.楼主可以找会英文的看看.
To:Canada Consulate in Hongkong
With due respect
It's my honor to receive your letter of interview.As per requirements of the document,I will fax my warrantor's available phone number to you right now.
(略)
I believe,for the sake of time difference,my warrantor should be at home during the course of interview time.If her/his cell and home phone was unreachable at the moment,it is perhaps that she/he is at work or in office.Hence,I hereof additionally enclose her/his office phone number:___.
To tell the truth,I don't speak English,and thus,I hope the consulate could offer translation in either Cantonese or Mandarin.Thank you.

可以填两个,很多人都是填父母的名字的.要是只有一格的话,字写小一点吧.
我不知道你是要什么格式的,要是你是去读语言的话,你可以用我帮你写的,但是要是你是要过去直接插班的话,最好用你自己的语言.因为每个人运用语言都有自己的特点,有的时候是很容易看出来的,不知道你是要去哪国,但是要是签证官一旦对你的语言能力产生怀疑的话,拒签是很容易的.
Dear Sir / Madam,
I am writing to you to ask about the financial Supporter.In my case,my parents will become my Supporters.But in the application form,the space for the Supporter's name is limit.I afraid there is no enough space for me to write down both my parents' name.
I don't know what to do,so write you a message,hope you can help.
Kind regards
xxx

A

一起案件借款人只是一个，所以只能在一个案件中起诉，你不可能单独因为一个借款事件分两次起诉，即使担保人有两人。