Interchange Fourth Edition is a fully revised edition of Interchange, the world's most successful series for adult and young-adult learners of North American En

Student's Cassette 3 contains selected recordings from Class Cassette Set 3 that students can listen to individually for extra practice.

-- Students' Book -- Workbook.

Interchange Fourth Edition is a fully revised edition of Interchange, the world's most successful series for adult and young-adult learners of North American En

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 interleave