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CAIRO BOOKS's Description
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 Class Audio Cassettes include the Conversations, Grammar Focus
frames, listening activities, Pronunciation practice, and self-study section
from the Student's Books, all recorded in natural conversational English. Also
included are the listening sections of the Quizzes found in the Teacher's
Edition. The Class Audio program is also available on audio CDs.