___________ commonly chosen as the first step to a career in public office

Neptune is an extremely cold planet, and _________

Public television stations are different from commercial stations _____________

Jellyfish are probably _________ on Earth.

Penguins, the most highly specialized of all aquatic birds, may live _____ twenty years

_________ as the most important crop in Hawaii is sugar cane

George belongs to the _________

________ the jaguar used to roam freely in the southwestern United States.

From 1926 until her death, Margaret Mead ________ New York's American Museum of Natural History.

Quasars _________ emitting extremely intense radio waves and visible radiation.

Anxiety about uncontrollable situations is thought to cause __________

Some procedures used for laboratory analysis of archaeological specimens are _______ procedures conducted in crime laboratories

In xerox printing, the ink becomes fused to the paper as soon as __________

The student managed to pass the entrance examination __________ he was blind.

A good team _______ of both recruiting and coaching as well as performing.

Only __________ of the breeds of cattle have been brought to the United States.

Floride has not yet ratified the Equal Rights Amendment, and _________

One purpose ________ to decide if there is sufficient evidence to try a person for a crime

Most substances contract when they freeze so that the density of a substance's solid is ______ of its liquid

The seating of musicians in an orchestra is arranged _________ to produce the desired blend of sounds from the various musical sections.

Gilbert Stuart is considered by most art critics _________ greatest portrait painter in the North American colonies

Iron _________ for weapons and tools in the Bronze Age following the Stone Age.

Lunar eclipses occur each time the Earth blocks the Sun's light from the Moon _________ the Moon's full phase.

_______ were stones piled at intervals.

By praying outside saloons, throwing rocks in saloon windows, and destroying saloons with her hatchet __________

They decided to finish and finally ________ the hard evening with a pizza and a few sodas

Benjamin West contributed a great deal to American art: __________

The seed heads of teasel plants raise the nap on coarse tweed cloth __________ than do the machine tools invented to replace them.

Deserts are often formed _________ they are cut off from rain __________ bearing winds by surrounding mountain ranges.

A communications satellite orbits the earth at the same rate that the earth revolves ________ over a fixed point on the surface.