Physical fitness exercises can cause injuries. .................... the participants are not careful.

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

Jan Malzeliger's invention, the shoe-lasting machine,..................production but it also cut the cost of shoe production by half.

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.