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    1. Typical of the grassland dwellers of the continent is the American antelope, or pronghorn.
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        2. Of the millions who saw Haley¡¯s comet in 1986, how many people will live long enough to see it return in the twenty-first century.
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        3. Anthropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions.
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        4. Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued.
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        5. Any profit organizations to survive and ultimately consumers must produce usable or needed products.
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        6. The greater the population there is in a locality, the greater the need there is for water, transportation, and disposal of refuse.
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        7. It is more difficult to write simply, directly, and effectively than to employ flowery but vague expressions that only obscure one¡¯s meaning.
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        10. The knee is the joints where the thigh bone meets the large bone of the lower leg.
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        11. Acids are chemical compounds that, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red.
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        12. Billie Holiday¡¯s reputation as a great jazz-blues singer rests on her ability to give emotional depth to her songs.
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