You can write the cover letter by yourself style.

The sample letter on line is just for your references, and the case is not the same as yours. So, you can not just copy everything, and you need to modify it to match your case.

所有跟帖： 

• 謝謝您的回答，我主要是怕我提交缺少材料 -oucruiser- ♂ (759 bytes) () 01/16/2015 postreply 14:46:26

• Reply -863211- ♂ (160 bytes) () 01/16/2015 postreply 14:56:23

• 請問這個notice是否不用作為提交材料。另外USCIS是把這個notice發email給我嗎 -oucruiser- ♂ (97 bytes) () 01/16/2015 postreply 14:59:36

• You may need it to file I-485 later. -863211- ♂ (0 bytes) () 01/16/2015 postreply 15:11:20

• Thank you -oucruiser- ♂ (30 bytes) () 01/16/2015 postreply 15:24:07