Important: Wizard Idiomas materials are copyrighted. Avoid piracy. Here are legitimate ways to get PDFs:
Every Wizard unit ends with a "Review" (exercises). Do not peek at the answers. After finishing the W6 book, for example, wait one week and redo the review section without looking at the PDF to test long-term retention. Livros Wizard W2 - W4 - W6 - W8 - W10 - W12 Em Pdf
The final boss. W12 is designed to get you to near-native proficiency. Topics include inversion ("Never have I seen..."), subjunctive mood ("I suggest he go"), and advanced business collocations. Most PDFs of W12 are text-heavy and require a dictionary alongside the book. Important: Wizard Idiomas materials are copyrighted