Topic 1 Safety and self-rescue Topic 2 The family Topic 3 Quality education Topic 4 Science and technology Topic 5 Changes and development Topic 6 Life philosophy Topic 7 Growth and suggestions Topic 8 Emotions and feelings Topic 9 Tourism and transportation Topic 10 Festivals and activities Topic 11 School life Topic 12 Plans and arrangements Topic 13 Thanksgiving and gratitude Topic 14 Sports and health Topic 15 Environmental protection
以下为对购买帮助不大的评价