A correction: "confusion"

'A' and 'the' have distinct meanings. They're not used arbitrarily with specific words like genders are in some languages. Changing 'a' to 'the' in a sentence and vice-versa changes the meaning of the sentence. 'Cut a cake' and 'cut the cake' are both correct, but they mean very different things. If you know what 'a' and 'the' mean, you'll be able to figure out which one tobuse in a sentence.

You should read this article, very useful!
www.italki.com/article/9/a-an-and-the-learn-how-to-use-english-articles

I hope you enjoy ;)

http://www.youtube.com/watch?v=69CRzyTYFJI&index=11&list=PL2621D8F6B6B29B7B

thank you guys, its gr8..