| 1. A mediator has been called in to __________ negotiations between the administration and the union. | | |
| 2. Red was considered the __________ choice to mean stop for traffic signals because it has long been associated with danger. | | |
| 3. Our planet can be viewed as a living __________ that we are slowly poisoning through pollution. | | |
| 4. The ancient Romans built a __________ of roads totaling 80,000 kilometres. | | |
| 5. Foreign investors are attracted by Costa Rica's political __________, and high education levels. | | |
| 6. Asian high school students tend to outperform North American students __________ in a number of different subjects. | | |
| 7. In Vancouver, there is a seabus which shuttles between Vancouver and North Vancouver as part of the __________ system. | | |
| 8. The illegal animal trade has been a significant factor in the __________ of the wild orangutan population. | | |
| 9. John Naisbitt once remarked that education is the __________ tool for growing people and profits. | | |
| 10. Scott wanted to __________ a course, so he wrote the exam for it, but unfortunately he failed. | | |