500 Words, Phrases And Idioms For The TOEFL iBT This TOEFL book is diferrent because it uses an integrated vocabulary learning system called recycling. Recycling is simple. Each excercise is divied into four quizzes. Quizz #1, a multiple-choice vocabulary quiz, introduces ten new words. Next, you will do Quiz #2. Quiz #2 is sentence completion quiz based on the ten worlds in Quiz #1. Next, you will do Quiz #3, a spelling quiz. The speaker on the CD will say the same ten words in turn. You will then have ten seconds to spell each word by saying it and typing it. Finally, you will do Quizz #4. Quiz #4 is a 60-word typing test based on the ten new words you have beenrecycling through Quizzes #1, #2, #3, plus words, phrases and idioms recycled from previous exercises.