Re: Postcard to a friend (academical purposes)
Hi Marco, and as the others have said, welcome to the forums.
You were asked by emsr2d2 about the academic purpose because we aren't supposed to help you with your assignments before you turn them in. Your teacher needs to see what you know and what you can do without help, so that he or she can make sure you get the instrutcion you need. It's also simply not fair to others in your class to have a bunch of English speakers fixing your work before you turn it in.
HOWEVER - when you get your assignmens back and are confused about anything, or (and this happens a lot) you want to argue a point your teacher made, we are very happy to help you then.
In the future, please don't ask us to correct work before you turn it in. You're not helping youself learn -- you're just helping youself get a better grade. We're ready for you after you get it back, though!
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.