________ Social Security Act of 1935 was written to insure workers against unemployment.

The more she worked ________.

Having been selected to represent the Association of American Engineers at the International Convention, ________.

The decomposition of microscopic animals at the bottom of the sea results in an accumulation of ________ in porous rocks.

A perennial is ________ for more than two years, such as trees and shrubs.

Hybrids have one more ________ per plant than the other varieties.

Less moderate members of Congress are insisting that changes in the social security system ________ made.

The javelin used in competition must be between 260 and 270 centimeters ________

The closer to one of the earth's poles, the greater ________ gravitational force.

Pigs ________ certain characteristics with human beings.