This document contains a series of practice exercises identifying and correcting errors in grammar, spelling, punctuation, and parts of speech. There are multiple choice, fill-in-the-blank, and short answer questions across topics like articles, prepositions, tenses, countable/uncountable nouns, pronouns, subject-verb agreement, and commonly misspelled words. The purpose is to help students improve their mastery of foundational English language rules and conventions through targeted practice.