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.With x – ray microscopes scientists can see through live insects --- even through solid pieces of metal.





7.As resident of New Mexico, Dennis Chavez --- to the House of Representatives in 1930 and to the Senate in1938.





8.--- are not leached out of soil, reclamation procedures are needed to restore the land’s productivity.





9.-- social crusade aroused Elizabeth Williams’enthusiasm more than the expansion of educational facilities for immigrants to the United States.





10.--- as 2500 B.C., the Egyptians used mirrors made of highly polished metal.