Delta"s Key to the TOEFL Test is a comprehensive TOEFL preparation course. It is the first totally new TOEFL prep course to unlock the mysteries of the computerized TOEFL and the traditional paper-based test. The course design is based on sound instructional theory. Fifty-four units of study each zero in on a specific skill in listening, language structure, reading, or writing. All units include a focus exercise, many sample test items, discussion of TOEFL "tricks," several practice exercises, extension activities, and a skill assessment. The new "computer-unique" test items are clearly described with tips. Students and teachers are given suggestions on various ways to use the text and cassettes. Features include * Quick diagnostic test * Over 2300 TOEFL-type questions in tests and exercises * Tapescripts for all listening exercises * Complete review of grammar points tested * Mini-course in essay writing * 32 quizzes and 3 section review tests * 4 full-length practice tests * Annotated answer keys that refer to units of study * Graphs to record progress