: Many versions now include a code for an interactive eBook, which adds audio examples for listening and pronunciation practice, as well as an easy-to-check answer key. Supplementary Exercises

If you are desperate for a high-quality new PDF on a budget, here is the best path:

Same as Kindle: Official digital license with read-aloud features.

The word “Intermediate” confuses some learners. Let’s clarify.

The new editions include extensive sections on these essential, everyday idioms.