📲💻 🎯 Here are more tests to check that you understand all the apostrophe rules:
https://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-105767.php
https://www.ecenglish.com/learnenglish/lessons/take-apostrophe-quiz
(best on laptops/tablets, or you can just resize answer boxes on your phone)
🎓 Here are some more challenging ones if you want to stretch yourself!
https://www.grammarbook.com/grammar_quiz/apostrophes_1.asp
https://www.bbc.co.uk/programmes/articles/5BrQRSTxg6cslZKcrMnfc40/the-apostrophe-quiz