You don’t. Illegal PDFs strip the audio. You can try to buy the audio separately from the publisher for ~$10, but it is often locked to a specific ISBN of the physical book.
This book differentiates itself by moving beyond basic "starter" vocabulary and focusing on more complex language frequently encountered in the actual exam. Collins Cobuild Key Words For Ielts Book 2 Improver Pdf
: The book includes a thematic word list section covering frequent exam topics (e.g., health, education, cities) and practice exercises modeled on actual IELTS papers. Where to Find or Purchase You don’t
Why this method works