Questions 17 to 20 are based on the passage you have just heard. 　　17. A) It is completely flat. 　　B) It has few rivers. 　　C) It has many large lakes. 　　D) It is hilly.(D) 　　18. A) The soil has been overworked. 　　B) The climate is cold. 　　C) The weather is too dry. 　　D) The soil is sandy.(A) 　　19. A) By raising cattle. 　　B) By working on farms. 　　C) By working in factories. 　　D) By raising sheep.(C) 　　20. A) At school. 　　B) From their parents. 　　C) From books. 　　D) In factories.(B) 　　Part I 1. A 2. C 3. C 4. B 5. D 6. B 7. B 8. D 9. C 10. A 11. A 12. A 13. D 14. C