Unit 1 Housing and Transportation
Unit 2 Public Service
Unit 3 Social Activities
Unit 4 Social Etiquette
Unit 5 Technology
Unit 6 Entertainment
Unit 7 Lifestyle
Unit 8 Dating and Parties
Unit 9 Making Decisions
Unit 10 Discussion
Unit 11 Emotion Ⅰ
Unit 12 Emotion Ⅱ
Unit 13 Expressing Opinions
Unit14 Revision Ⅰ
Unit 15 Revision Ⅱ
Audio Scripts and Keys
