The Used and Rental copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.
The Workbook section provides a variety of practice to reinforce the vocabulary and grammar presented in each chapter and to help develop reading and writing skills. The Lab Manual section includes pronunciation explanations and practice as well as a variety of listening activities to develop listening comprehension.