| 1. _______________ of water is vital to all plant and animal life.
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| 2. We need to find a more _______________ way to manufacture our products because our profit margin is too low.
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| 3. Warmer than average weather was the deciding _______________ in our decision to postpone our ski trip.
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| 4. Interest in the planet Mars has greatly increased since _______________ of water raised the possibility that life in some form may have evolved there.
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| 5. Music downloaders are questioning the _______________ of file sharing, claiming the law is unclear on the matter.
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| 6. Meetings will be held _______________ for the members of the project to discuss their progress.
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| 7. Jane Goodall's _______________ into chimpanzees has greatly increased our knowledge of these animals.
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| 8. We are _______________ obliged to deal with this firm.
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| 9. The DNA of chimpanzees shows a remarkable _______________ to that of humans.
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| 10. At the end of a research project, the researcher is normally faced with lots of observations which need to be _______________.
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