is there any web sites i can check the grammar?

almost every computer today has what is often called Spellchecker, if you are worried about your spelling. if you are looking for other grammatical questions, i refer you to Roget's Thesaurus (on line), Encyclopedia Britannica (also on line) or your local library business and info center (usually at the main branch/depending on hours). you can buy video/cd disc from your local computer stores/ office depot, etc. that you can load into your C files.