When contented and occasionally when hunger, cats frequently make purring sound.

Even smallest pulley can be done stronger by adding wheels to its system to create leverage

Because of its vast tracts of virtually northern forest, Canada has one of the lowest population density in the world.

Short-wave radios can receive and transmit signals are used by pilots, the police, and amateur operator.

As the marathon runner reached the half-way mark, he, being hot and was soaked with perspiration, stopped to rub down with a towel.

He's finished this test, _    ?

Due to the government’s policy, some farming are have been abandoned.

Find the word which has a different sound in the part underlined.

The parcel which my uncle sent me from America containing two books and some tapes.

Scuba diving is usually carried out in the ocean in that people can explore underwater world.

It has been reported that during twenty-four hour period, a minimal of three hundred North American women start their own businesses.

Recently in the automobile industry, multinational companies have developed to the point where such few cars can be describe having been made entirely in one country.

Don’t let him treat you badly. _____ him. 

In England as early as twelfth century , young boys enjoyed to play football.

The decade of the 1920’s was significant in Georgia’s history because of the rapidity with what agriculture declined the state.

The rock formations in the Valley of Fire Nevada has been worninto many strange shapes by the action of wind and water.

The hreat of being dismissed do not worry me any more because I have started my own busines

Manyamny Civil War battles were fought in Virginia than in other state.

In 1984, the world population rose to over 4.7 billion, up almost 85 million from an estimate made the year ago.

As you come to each town, however small, you will see a sign which the name of the town and how many inhabitant does it have.

You wanted me to tell you about what I was doing here and how waslife