1) _____ a lonely and rugged life, far from home and family.

2) Helium is _____ all gases to liquefy and is impossible to solidify at normal air pressure.

3) Every year Canadian _____ about 75 percent of their exports to the United States.

4) An innovator, ballerina Augusta Maywood was _____ a traveling company.

5) When water freezes in the cracks of rocks, _____ expands, causing the rocks to break apart.

6) In 1938, when Benny Goodman’s orchestra presented a concert at the prestigious Carnegie Hall, _____ was clear that jazz had at last been fully accepted.

7) _____ a continuous mass of water on the Earth’s surface, all continents are islands in the strictest sense of the word.

8) The spiral threads of a spider’s web have a sticky substance on them _____ insects.

9) _____ in 1635, the Boston Latin School is the oldest public school in the United States.

10) According to anthropologists, the earliest ancestors of humans that stood upright resembled chimpanzees _____ , with sloping foreheads and protruding brows.

11) Booker T. Washington, acclaimed as a leading educator at the turn of the century, _____ of a school that later became the Tuskegee Institute.

12) _____ white ginger, one scrapes and washes the roots before drying them.

13) By the time _____ , Norman Rockwell had decided that he wanted to be an artist.

14) During the eighteenth century, Little Turtle was chief of the Miami tribe whose territory became _____ is now Indiana and Ohio.

15) Pansies can be cultivated easily in home gardens, but - -- plenty of water and not too much sun.