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Class Audio CD contains four discs for working with the student book, workbook, teacher's book and photocopy book, including:

CD 1 – Pupil’s Book + Activity Book (Well done, Explorers!, Units 1-3)

CD 2 – Pupil’s Book + Activity Book (Unit 4-6)

CD 3 – Pupil’s Book + Activity Book (Unit 7-9)

CD 4 – Teacher’s Book + Teacher’s Resource Book (photocopiable materials)

CD 4 – Teacher’s Book (Unit 7-9)