Available for free, I've put together supplemental stories from the book Can You Believe It? Stories and Idioms from Real Life

These books are so popular, they've been reprinted for 2023. The old books are available online (links included), so there's no cost and the best part, they're still good.

Students can practice English in a familiar setting. They can retake the quizzes as much as they like.

Idioms Adapted to Korean Life – business news english