回複：回複：加拿大移民遇麻煩，求助！

Thanks for you reply!

Who is qualified to write the letter, my co-worker, manager or the HR? BTW, I don't want my current company finds out that I am applying the Canada Imm. Since they applied the USA GC for me. but my company is very unstable so I need a backup. Can I ask my previous company to write a letter?

Thanks again!