2 Checking and clarification
1 Asking for repetition
1.2 Asking for Repetition < http://www.eslgold.com/speaking/asking_repetition.html
1.3 Asking and Response for Repetition (with two dialogues) < http://www.nurdiono.com/asking-and-response-for-repetition.html
1.4 What? Pardon? Sorry? Three times, you're out! < http://www.heara.ca/content/what-pardon-sorry-three-times-youre-out
2 Checking and clarification
2.2 Clarifying and classification < http://www.skillsyouneed.com/ips/clarification.html
2.3 Checking/clarifying games and other worksheets < https://tefltastic.wordpress.com/worksheets/functions/clarifying