Interchange Third edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. The Interchange Third Edition Level 3 Whiteboard Software offers teachers a flexible and dynamic way to present the Level 3 Student's Book in class. The software presents key elements from each unit, including illustrations and photos, class listenings, audio scripts, answer keys, and video sequences.show more sakriti opis