Quizzes Test your knowledge of grammar, punctuation, and more with these fun quizzes. Ambiguity with Parts of Speech Apostrophes As versus Like Colons Commas with Dates, Places, and Names Commas, Conjunctions, and Modifiers Commas with Essential and Nonessential Elements Commonly Confused Words Dangling Modifiers Homophones Hyphens and En Dashes Its or It’s? Misuse of Titles Parallelism with Compound Elements Parallelism with Correlative Conjunctions Pseudonyms Semicolons Subject-Verb Agreement: Tricky Subjects That or Which? There, Their, or They’re? Who or Whom?