Sentences 1-15 contain errors in parallel structure, sentence boundaries (fragments, run-ons, or comma splices), commas, semicolons, colons, subject-verb agreement, pronoun case, pronoun reference, apostrophes, hyphens, quotation marks, italics, dashes, parentheses, or capital letters.

1. You need to do three things to improve this paper; correct the grammar, avoid wordiness, and make the organization more clear.