Get everyone talking. In class. Everywhere. Grammar, Vocabulary, Pronunciation in each lesson. iChecker Self-assessment CD-ROM includes a Progress Check and Dictation for every File as well as all Workbook audio. For Students Student Book with Online Practice Workbook with iChecker Multi-Pack: Student Book/Workbook Split Edition with Online Practice and iChecker English File Pronunciation app. Это и многое другое вы найдете в книге American English File: Workbook 4: Level В2 (+ CD-ROM) (Christina Latham-Koenig, Clive Oxenden, Jane Hudson)