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Lesson 1 1
Lesson 2 10
Lesson 3 15
Lesson 4 20
Lesson 5 25
Lesson 6 29
Lesson 7 33
Lesson 8 37
Lesson 9 41
Lesson 10 45
Lesson 11 49
Lesson 12 54
Supplementary Listening Materials 58
Full Contents With Key Answers 61