1. The artistic medium of clay is ________ that images have been found near the remains of fires from the last Ice Age.
2. So far there is no vaccine ________ in sight for the common cold.
3. Children just love computer games, ________ many adults.
4. She wanted to served some coffee to her guests; however, ________.
5. When friends insist on ________ expensive gifts, it makes most Americans uncomfortable.
6. Most foreign students don't like American coffee, and ________.
7. Burrowing animals provide paths for water in soil, and so do the roots of plants ________.
8. Bees ________ display distinct preferences for different colors, but are also sensitive to ultra-violet light.
9. In the west the birth of a girl is welcomed with an enthusiam ________ to that of a boy.
10. Although most adopted persons want to know who their natural parents are, some who have found them wish that they ________ the experience of meeting.
11. ________ through a telescope, Venus appears to go through changes in size and shape.
12. Sports medicine experts agree that ice should be applied immediately when an athlete suffers an injury to ________ leg.
13. Unless protected areas are established, the Bengal tiger, the blue whale, and the California condor face ________ of extinction.
14. A communications satellite orbits the earth at the same rate that the earth revolves ________ over a fixed point on the surface.
15. ________ is not a new idea.
16. Many modern architects insist on ________ materials native to the region that will blend into the surrounding landscape.
17. ________ were first viewed through a telescope by Galileo.
18. In 1885 photography changed dramatically ________ introduced paper-based film.
19. Before ________ Stephen A. Douglas took part in a series of debates with Lincoln on the slavery issue.
1. The fuel used in nuclear-powered ships is usually uranium in either the metallic ________.
2. The bank manager advised him ________ his savings into a time deposit account.
3. He bought a ________ on sale.
4. She bought ________ fruit because so many people were coming to visit.
5. Henry will not be able to attend the meeting tonight because ________.
6. The teachers have had some problems deciding ________.
7. Violence on American campuses has abated ________.
8. General Grant had General Lee ________ him at Appomattox to sign the official surrender of the Confederate forces.
9. People usually can get a sufficient amount of the calcium their bodies ________ from the food they consume.
10. Fast-food restaurants have become popular because many working people want ________
11. Small microcomputers of today can process ________ their predecessors, which were twenty times their size.
12. There were two small rooms in the beach house,________ served as a kitchen.
13. The bodies of living creatures are organized into many different systems, each of which has ________ function.
14. One's fingerprints are ________ .
15. ________ of the United States from southern New Hampshire in the north to Virginia in the south, a vast urban region has been defined as a megalopolis, that is, a cluster of cities.
16. Some plants are annuals; ________ are biennials; the rest are perennials.
17. The giraffe survives in part because it ________ the vegetation in the high branches of trees where other animals have not grazed.
18. By praying outside saloons, throwing rocks in saloon windows, and destroying saloons with her hatchet, ________.
19. Anthropologist Guy Swenson ________ that witchcraft beliefs are prevalent in societies in which social groups interact without formal mechanisms for social control.
20. When a body enters the earth's atmosphere, it travels ________.
1. Vr.Duncan does not know________the lawn vower after they had finished using it.
2. The painting ________ to the art museum last week.
3. Because she was feeling unwell, ________ to miss the examination.
4. ________ cheaper, Belinda would have bought it.
5. The most noticeable feature of African elephants ________ their large ears being quite different from the ears of Asian elephants.
6. Fred's yearly income since he changed professions has ________.
7. Although the weather in Martha's Vineyard isn't ________ to have a year round tourist season, it has become a favorite summer resort.
8. Sound comes in waves, and the higher the frequency, ________.
9. It was proposed by the new member on the committee that membership fees ________ reduced.
10. Neither Jane nor her brothers ________a consent form for tomorrow's field trip.
11. Trace minerals are ________ are elements needed in greater quantities.
12. The manager was angry because somebody ________
13. Richard Nixon had been a lawyer and ________ before he entered politics.
14. The two main ________ are permanent magnets and electromagnets.
15. There are many beautifully preserved historic buildings ________.
16. Clones, ________ , are genetically homogeneous.
17. Although research scientists had hoped that the new drug interferon ________ to be a cure for cancer, its applications now appear to be more limited.
18. ________ his life, Eugene O'Neill was regarded as the foremost American dramatist.
19. ________ born, a baby kangaroo measures less than three inches in length.
20. Electron storage rings ________ in investigations of the structure of materials.
