Unit 1 In the library 1
Unit 2 Water sports 20
Unit 3 Make our world more beautiful 37
Unit 4 Travel 54
Unit 5 Have a good time! 71
Unit 6 Mainly revision 90
Unit 7 A man who never gave up 110
Unit 8 Merry Christmas! 130
Unit 9 What is it made of? 149
Unit 10 When was it built? 169
Unit 11 Planting trees 187
Unit 12 Mainly revision 207
Unit 13 The world's population 226
Unit 14 Shopping 245
Unit 15 A doctor for animals 264
Unit 16 The football match 283
Unit 17 The missing necklace 302
Unit 18 Mainly revision 322
Suggested answers 341