OSC part B

Not woman held a presidential cabinet position in the United States until 1933, when Frances Perkins became secretary of labor.

• Not

• position

• until

• became

The human body relies on certainty nutrients for its survival.

• body

• relies

• certainty

• survival

Too much electric current may flow into a circuit as a result either of a fault in the circuit and of an outside event such as lightning.

• too much

• may flow

• fault

• and

The Appalachian Trail, extending approximately 2,020 miles from Maine to Georgia, is the longer continuous marked footpath in the world.

• extending

• miles

• longer

• continuous

For years, elephants were hunted for food and ivory, and as a result theirs numbers have been greatly reduced.

• hunted

• theirs

• numbers

• greatly

Barges which carrier most of the heavy freight on rivers and canals are usually propelled by towing.

• carrier

• heavy

• on

• towing

Although afflicted by serious eyesight problems, Alicia Alonso was one the principal stars of the American Ballet Theater and later formed her own dance company.

• although

• eyesight problems

• one the principal

• her own

The ritual combat of animals are triggered by precise signals.

• ritual

• are

• by

• signals

24. It is more difficult to write simply, directly, and effective than to employ flowery but vague expressions that only obscure one’s meaning.

• more difficult

• effective

• to employ

• vague

Different species of octopuses may measure anywhere from two inches to over thirty feet in long.

• species

• anywhere

• to over

• in long