At a restaurant:
LISTENING: Snack Time!
https://www.esl-lab.com/snack/snackrd1.htm
LISTENING: Ordering food in a cafe (A1)
LISTENING: Eating out (A2)
http://learnenglishteens.britishcouncil.org/skills/listening/elementary-a2-listening/eating-out
LISTENING: Pizza delivery (B1)
https://www.esl-lab.com/pizza/pizzard1.htm
Modal verbs (explanation):
http://esl.fis.edu/grammar/rules/modal.htm
https://learnenglish.britishcouncil.org/english-grammar/modal-verbs
https://www.myenglishpages.com/site_php_files/grammar-lesson-modals.php
Games:
http://www.eslgamesworld.com/members/games/grammar/New_Snakes_%20Ladders/Mixed_Modals.html
Body/ Health
http://www.learningchocolate.com/category/bodyhealth
Human anatomy Quiz:
https://www.enchantedlearning.com/classroom/quiz/anatomy.shtml
Patient Plays Saxophone While Surgeons Remove Brain Tumor: