- Updated to reflect the latest TOEFL formats, this book presents more than 1,000 practice questions with explanatory answers. This package is designed to prepare students to succeed on both the Paper-Based TOEFL (PBT) and the Internet-Based TOEFL (iBT). A full-length TOEFL PBT practice test and a full-length TOEFL iBT practice test are also included, and are supplemented with instructions for evaluating answers to test questions and determining a test score.