选集

• 1 Growing up
• 2 My summer holiday
• 3 Healthy or unhealthy
• 4 Our neighbours
• 5 Animals in danger
• 6 E-friends
• 7 Seeing a film
• 8 Visiting museums
• 9 Great cities of the world
• 10 Air
• 11 Trees
• 12 The Earth
• Revision 4