參考答案

　　11. [D] Fred may have borrowed a sleeping bag from someone else.

　　12. [B] It will cool down a bit over the weekend.

　　13. [C] Hosting a TV program.

　　14. [D] The plants should be placed in a shady spot.

　　15. [C] Go to bed early.

　　16. [B] She has learned to appreciate modern sculptures.

　　17. [A] They seem satisfied with what they have done.

　　18. [A] The man shouldn't hesitate to take the course.

　　19. [B] Domestic issues of general social concern.

　　20. [D] Based on public expectations and editors' judgment.

　　21. [B] Practical experience.

　　22. [A] Their average life span was less than 50 years.

　　23. [C] Learn to use new technology.

　　24. [D] When all people become wealthier.

　　25. [C] Control the environment.

　　26. [B] To alert teenagers to the dangers of reckless driving.

　　27. [A] Road accidents.

　　28. [C] It has accomplished its objective.

　　29. [B] Customers may be misled by the smell.

　　30. [C] Supportive.

　　31. [A] The flower scent stimulated people's desire to buy.

　　32. [C] A passenger train collided with a goods train.

　　33. [C] The cause of the tragic accident remains unknown.

　　34. [A] There was a bomb scare.

　　35. [D] Drive with special care.

　　36. tongue

　　37. official

　　38. administration

　　39. commerce

　　40. spread

　　41. disadvantaged

　　42. competence

　　43. investigate

　　44. come to understand how it is used as a symbol of both individual identity and social connection

　　45. infants born into English-speaking communities acquire their language before they learn to use forks and knives

　　46. You are encouraged to develop your own individual responses to various practical and theoretical issues