The chemical _____________ from cars and factories make the air, water and soil dangerously dirty.

That’s the doctor for ................ Cliff works.

Some children, beforegoing school, go to kindergartens, officially are called nursery schools

Physiologically, the period of adolescence is marked by active growth, especially in the skeletal and muscular systems and incertain

I’d rather you ...............  to the English-speaking club with me this Sunday.

Under the crust of the Earth are bubbling hot liquids that sometime rise to the surface

A police spokesperson confessed that detectives were baffled by Mr. Day’s disappearance, but were hoping to come up with an explanation.

Depending on many factors, including climate, mineral content of the soil, and the permanency of surface water, wetlands may be mossy, grassy, covering with shrubs or trees.

The development of professional sports in the United Stated dates back to nineteenth century.

Carnegie hall wasfirst building in New York designed special for orchestral music.

The most substances expand in volume when they are heated.

The government’s budget maybe considered balanced when the amount money it spends does not exceed the amount it receives

The Library of Congress, located in the nation’s capital, houses history documents and photographs as well as most books published.

Many deaths associated with fires are not actual caused by the flames, but are rather result of asphyxiation resulting from the decreased oxygen supply in burning buildings .

Some methods to prevent erosion are plowing parallel with the slopes of hills, to plant trees on unproductive land, and rotating crops.

He rarely goes to the market, ______?

Commercially honey is heated and filtered order to stabilize and clarity it.

In the United States, among 60 percent of the space on the pages newspaper is reserved for advertising.

The direct sources of fresh water in lakes are rain, melted snowy and ice.

Georgia has too many types of soil that virtually any temperate-zone crop can be grown

Gothic Revival architecture has several basic characteristics that distinguish it othe nineteenth-century architectural styles.