Ask a friend to proofread. Depending on the length of your composition, one will suffice. A complicated topic can require two. In the introduction you tell readers what they will be reading about, and your opinion. This is your thesis statement, and with which you may choose to begin or end the introductory paragraph.
Brevity is the soul of wit.
Body of Paper Several paragraphs, at least three or more that present evidence of your topic in an orderly manner. Everything must relate to your thesis statement. Conclusion Usually no more than one paragraph that restates your thesis, recaps essentials and leads to a general statement of conclusion. Rewording declarative sentences into questions is a good technique to involve readers. Again, go for simplicity and clarity.