Unit 1 The summer holidays
Unit 2 In the lab
Unit 3 American English
Unit 4 Travel
Unit 5 Why do you do that?
Unit 6 A new factory
Unit 7 Earthquakes
Unit 8 Main revision
Unit 9 Computers
Unit 10 Sports
Unit 11 Country music
Unit 12 English programmes
Unit 13 Abraham Lincoln
Unit 14 Main revision
Unit 15 Health Eating
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