The steam engine is usually thought of as a relative modern invention, but the Greeks built kind of steam engine ancient times

The Humber River and its valley form a major salmon-fishing, lumbering, hunting , and farmer region western Newfoundland, Canada.

May I ask who was that man who was leaving the office when we came in?

Nuclear powers production in the us is controlled by the Nuclear Commission

Jeff and Gloria went to pick out carpeting and decoration, including furnitures, for the lounge that was opening in the third floor.

Listening to music tape or even on disk is not nearly as good as to go to live concert.

In winter it is important for farmers to provide food and warm for  animals.

The number of student attending English courses at university are increasing.

The police have been _____ in to deal with the riot. 

The news today are always full of stories about people who are unhappy.

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

He never drinks wine, _________?

Because silk is the strongest of all natural fibers, ranking in strong with the synthetic fiber nylon, its look and fell are deceptive .

Light rays what enter eye must be focused onto a point on the retina in order for a clear visual image to form.

The Dave Brubek Quartet, of the most popular jazz bands of the 1950s, had a particularly loyal following on campuses college.

When the sky is blue and the sun is shining, you may say to your friends "____________"

Stars derive their energy from thermonuclear reactions that take place in heat interiors.

Ancient people used pot cooking, storing food, and carrying things from place to place

Frank Lloyd Wright has been acclaimed  by colleagues as the greater of modern architects

The sun contains 99.9 percentage the mass of solar system.

It is  nearly perfect crystal structure that gives diamonds their hardness, brilliance, and transparent