1. Advanced 4A Unit 4 workbook key

2. 1. Vocabulary and expressions A 1. An escapist 2. Activists 3. Apathetic 4. Issues 5. Visionaries 6. Motivated 7. A tradition 8. Generation

3. C 1. F 2. H 3. J 4. E 5. D 6. B 7. I 8. G 9. C 10. A

4. 2. Grammar A 1. H 2. C 3. A 4. J 5. I 6. E 7. G 8. F 9. D 10. B

5. B 1. Found find 2. To 3. Go gone 4. Required allowed 5. Were did 6. Can must

6. Lesson B

7. 1. Reading B 1. B 2. A 3. A 4. C 5. C

8. C 1. Grassroots 2. Landfill 3. Donated 4. Participate 5. Non-profit

9. D 1. couches, computers, office chairs, desks 2. Budapest, Hong Kong, São Paulo 3. Baby clothes, old magazines, cans of paint, old sewing machines, used computers, cell phones 4. Old cookbooks, golf shoes, goldfish 5. Homeless people, a school volunteer, a person who needed a wedding dress