The North Platte River __ from Wyoming into Nebraska.

• it flowed

• flows

• flowing

• with flowing water

__ Biloxi received its name from a Sioux word meaning "first people.

• The city of

• Located in

• It is in

• The tour included

A pride of lions __ up to forty lions, including one to three males, several females, and cubs.

• can contain

• it contains

• contain

• containing

__ tea plant are small and white.

• The

• On the

• Having flowers the

• The flowers of the

The tetracyclines, __ antibiotics, are used to treat infections.

• are a family of

• being a family

• a family of

• their family is

Any possible academic assistance from taking stimulants __ marginal at best.

• it is

• there is

• is

• as

Henry Adams, born in Boston, __ famous as a historian and novelist.

• Became

• and became

• he was

• and he became

The major cause __ the pull of the Moon on the Earth.

• the ocean tides are

• of ocean tides is

• of the tides in the ocean

• the oceans' tides

Still a novelty in the late nineteenth century, __ limited to the rich.

• was

• was photography

• it was photography

• photography was

A computerized map of the freeways using information gathered by sensors embedded in the pavement ______ on a local cable channel during rush hours.

• Airs

• Airing

• Air

• To air