- New Interchange Business Companion 1, International Edition is a self-study workbook, accompanied by audio-CD, that has been written for New Interchange students who have an interest in Business English. It offers a variety of activities that recycle language from New Interchange 1 and enables learners to operate effectively in business contexts. It also introduces a wide range of business vocabulary, systematic listening, reading, writing and speaking practice. New Interchange Business Companion 1, International Edition contains 16 two-page units linked to the units in New Interchange 1 Student"s Book. Although the activities can be used in class, they have been designed for learners to do individually and at their own pace. The recordings on the audio-CD provide a model for pronunciation of new words in the Vocabulary activities and Listening exercises.