Contributor(s): Author: Jack C.
It is ap.
The Workbook helps recycle and review language by providing additional practice in grammar, vocabulary, reading, and writing.
This Intro level Workbook provides six pages of additional practice for each unit of the Student\'s Book.
Interchange is a four-level, American English course that has been used by over 50 million students worldwide.
Richards Teach with confidence, using the world\'s favorite English course.
Contributor(s): Author: Jack C