How to get 'A' for the General Certificate of Education (GCE) in the essay

I having a big problem to get 'A' in GCE in the final exam. Could someone tells me the way?

The way to do it is to write a coherent, well-organized, and grammatically correct essay. Why don't you post an example of your writing here so that we can try to identify your weak areas for you?

Yeah, your question is sort of vague. Presumably you want to know how to write a coherent, well-organized, and grammatically correct essay, but we can't really tell you how to do that, because we don't know how much of the process you already know, where your weakness are, etc.

ok, i do my best to post some essay here