| 1. Part of her job as a nurse includes __________ the doctor during operations. | | |
| 2. The book is __________ because it is out of print, and any copies that do exist are in the hands of collectors. | | |
| 3. Sand consists __________ of fragments of rocks. | | |
| 4. Carbon __________ can help encourage companies to reduce the amount of greenhouse gas emissions they produce by assigning a financial cost to polluting the air. | | |
| 5. A tooth believed to have belonged to Buddha __________ in the Sri Dalada Maligawa temple in Sri Lanka. | | |
| 6. The top five __________ among the sales staff each month are awarded bonuses of $1000 and a celebratory dinner. | | |
| 7. The Olmecs of ancient Mexico recognized the __________ utility of zero a thousand years before the development of the Arabic numbering system we use today. | | |
| 8. Leaders of the largest developed countries need to __________ summit meetings at least annually to address the growing problem of global pollution. | | |
| 9. Developments in both robotics and cloning will force a __________ of what it means to be human. | | |
| 10. We found a perfect __________ to set up our tent right beside the river. | | |