The prices of homes are as high urban areas that most people cannot afford to buy them

A dark nebula consists of a cloud of interstellar dust enough dense to obscure the stars beyond

The leader emphasized the need justice and equality between his people.

Lawrence Robert Klein received the 1980 Nobel Prize in economics for pioneering the useful of computers to forecast economic activity.

Since the average age of families has fallen, therefore more and more women have been able to join the labor force.

Lightning rods are used for to direct intense electrical bursts into the ground instead of buildings and people

The more important theorem of in plane geometry is Pythagorean Theorem.

Electric motors range in size from the tiny mechanisms that operate sewing machine to the great engines heavy locomotives.

As the telephone became ...……and more popular, it largely replaced the telegraph

Despite television is the dominant entertainment medium for United States households, Garrison Keillor’s Saturday night radio show of folk songs and stories is heard by million people

We are doing _____ our kitchen today and we could do _____ more paint. 

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

Almost all ships move through the Suez Canal their own power, but large ships must be assisted by a tugboat.

Mrs Stevens, along with her cousins from New Mexico, are planning to attend festivities

Sawfish are shark-like fish have “saws” of cartilage set with two rows of teeth on snouts

In the stock market, fluctuations in Standard and Poor’s 500 Index does not always conform to Dow Jones Averages

Chemical compounds with Barium, Cobalt, and Strontium are esponsible to many of the vivid colors fireworks.

Located in Canada, the Columbia Ice field covers of 120 square miles and is 3,30 feet thick in some places

It was him who came running into classroom with news.

We didn’t eat here last week, ____ we?

In a person’s lifetime, brain can store 100 trillion pieces of informations