Punctuation Practice

https://www.khanacademy.org/humanities/grammar/punctuation-the-comma-and-the-apostrophe/introduction-to-commas/e/punctuating-lists

https://www.niu.edu/writingtutorial/punctuation/quizzes/PunctuationSelfTest.htm

http://www.butte.edu/departments/cas/tipsheets/practice_punctuation.html

https://owl.purdue.edu/owl_exercises/punctuation_exercises/basic_punctuation/punctuation_exercise.html