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Saving _________ species from becoming extinct is crucial for our health and the future of our children.

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Our sources of energy will soon be __________ if we don't save them.

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They started a campaign to ___________ smoking among teenagers.

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People are destroying the environment by adding ___________ to it.

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It is high time we had to ________ some measures to protect endangered animals.

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Many ________ groups now support putting a value on ecosystems.

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15,589 species (7,266 animal species and 8,323 plant species) are now considered ______ risk ______ extinction.

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Internationally, 189 countries have signed ________ accord agreeing to create Biodiversity Action Plans to protect endangered and other threatened species.

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The giant panda's natural ________ is the bamboo forest. Giant pandas like to eat bamboo leaves.

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Clearing forests for timber has led ________ the loss of biodiversity.

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_________ you to the job, he felt calm.

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_________ so much, the doll is still on the shelf.

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_________ at by everyone, he was disappointed.

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Since_________ his new business, Bob has been working 16 hours a day.

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_________ one hand on the steering wheel, Ann opened a can of soda pop with her free hand.

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When _________ to explain his mistake, the new employee cleared his throat nervously.

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Try to keep a balance _____ your spending and your earnings.

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Police are _____ significant progress in fighting computer crime.

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Limiting the global temperature rise requires _____ global CO2 emissions.

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The tiger is _____ of extinction. It is difficult to find them in the wild.