1. A three-foot octopus can crawl through a hole
------ in diameter.

2. ------adopted the decimal system of coinage in
1867.

3. Generally, the representatives ------ a legislature are constitutionally elected by a broad spectrum of the population.

4. The Actor’s Studio, a professional actors’
workshop in New York City, provides
------where actors can work together without the pressure of commercial production.

5. ------ that life began billions of years ago in the water.

6. by 1872 the United States had 70 engineering
colleges, ------ astonishing expansion credited largely to the Morrill Act of 1862.

The artist Romare Bcarden was ------ whose yellows, deep blues, and fuchsias contrasted strongly with photographic gray in his bright collages.

8. The most important chemical catalyst on this planet is chlorophyll, -------carbon dioxide and water react to form carbohydrates.

9. One theory of the origin of the universe is
-------from the explosion of a tiny, extremely dense fireball several billion years ago.

10. Roads in the United States remained crude,
------- with graved or wood planks, until the beginning of the twentieth century.

11. portrait prints were the first reproductions of American paintings ------- widely distributed in the United States.

12. Abigail Adams was prodigious letter writer,
------- many editions of her letters have been published.

13. In geometry, an ellipse may be defined as the locus of all points -------distances from two fixed points is constant.

-------at the site of a fort established by the Northwest Mounted Police, Calgary is now one of Canada’s fastest growing cities.

15. An image on a national flag can symbolize political ideals that -------express.