1권
Unit 1 Environment
Unit 2 History
Unit 3 Biology
Unit 4 Anthropology
Unit 5 Literature
Unit 6 Astronomy
Unit 7 Arts
Unit 8 Architecture
Actual Test
Answer Keys
2권
Unit 1 Language
Unit 2 Agriculture
Unit 3 Arts
Unit 4 Psychology
Unit 5 History
Unit 6 Biology
Unit 7 Sociology
Unit 8 Geology
Actual Test
Answer Keys
3권
Unit 1 Education
Unit 2 History
Unit 3 Biology
Unit 4 Environment
Unit 5 Political Science
Unit 6 Arts
Unit 7 Earth Science
Unit 8 Human Body & Nutrition
Actual Test
Passage 1 Pluto
Passage 2 History of the Guitar
Passage 3 Private vs. Public Schools
Passage 4 Right and Left Brain Hemisphere
Passage 5 The Presidential and Parliamentary Systems
Answer Keys
