Unit1 The summer holidays 1
Unit2 In the lab 20
Unit3 American English 41
Unit4 Travel 64
Unit5 Why do you do that ? 89
Unit6 A new factory 109
Unit7 Earthquakes 123
Unit8 Mainly revision 145
Unit9 Computers 164
Unit10 Sports 186
Unit11 Country music 212
Unit12 English programm?s 229
Unit13 Abraham Lincoln 246
Unit14 Mainly revision 269
Keys 285