..................,is now way to tell the exact number of heroin addicts in the United States.

Alice Freeman. .............to head Wellesley College at age 27, is one of the youngest college presidents in history.

Poison oak generates irritating poisons.................. even if people merely brush against the plants.

.................... business, a merger is a combination of two or more corporations under one management.

Some monkeys.................. use their tails in a way similar to a hanD.

It is gravity..................object toward the earth.

.................. strength of 70 horses, a forklift toils all day long in a warehouse lifting great weights.

The growth of two-income families in the United States.................. moving to a new social class.