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Unit 1 The world of our senses 1
Module Three 1
Unit 2 Language 17
Unit 3 Back to the past 33
期中试卷 49
Unit 1 Advertising 59
Module Four 59
Unit 2 Sporting events 75
Unit 3 Tomorrow's world 91
期末试卷 107
Answer keys 117
Tapescripts 137