Unit editing_proofreading: Editing and Proofreading
Unit 3: Basic Sentence Structure & Verbs
Unit 4: Articles & Capitalization
Unit chapter_5: Chapter 5 Parts of Speech
Unit chapter_9: Chapter 9 Using Verbs
Unit 12: Subject –Verb Agreement
Unit chapter_13: Chapter 13 Punctuation: End Marks and Commas
Unit 13: Modal Auxiliary Verbs
Unit 14: Conditional Sentences