Interchange Fourth Edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. Class Audio CDs, Level 1 include the Snapshots, Conve
Interchange Fourth Edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. Workbook A, Level 2 has six-page units that follow th
Interchange is a four-level, American English course that has been used by over 50 million students worldwide. This Level 1A Workbook provides six pages of additional practice for each unit in the fir
Interchange is a four-level, American English course that has been used by over 50 million students worldwide. This Level 1B Workbook provides six pages of additional practice for each unit in the sec
