| 1. If we can conserve the _______________ variety of the world's habitats, we will conserve the life within these places. | | |
| 2. If the Earth didn't radiate back into space as much heat as it receives from the sun, the temperature on our planet would _______________ rise, and life would become impossible. | | |
| 3. _______________ with a topic you are reading about in a second language makes it easier to guess the meaning of new vocabulary. | | |
| 4. He thinks his work is _______________ important, so he ignores everything else. | | |
| 5. Disease is killing people daily due to the _______________ of clean water in the region. | | |
| 6. He walked _______________ across the room with a large half-empty bottle of vodka in his hand. | | |
| 7. The people of the far north have devised ingenious methods to endure the _______________ of the Arctic climate. | | |
| 8. Bob will almost certainly get the job because he has more _______________ than anyone else who applied for it. | | |
| 9. _______________, the human body cannot go more than a week and a half without water. | | |
| 10. In March of 1983, Dr. Barney Clark died 112 days after receiving the world's first _______________ heart. | | |
| 11. The United Nations has questioned the _______________ of the government, due to widespread reports of election fraud. | | |
| 12. I remember _______________ the first time I jumped out of an airplane. | | |
| 13. We won't be able to come to your party _______________ because we have a previous engagement. | | |
| 14. We watched the five-hour movie in its _______________ last night. | | |
| 15. The _______________ of children makes them frequent targets of human rights violations. | | |