The most common form of treatment it is mass inoculation and chlorination of water sources

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

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

The student realized with disappointment that he had learned new nothing in the lecture.

Believed that Jack had got home safely, we felt relieved.

My brother shouldn't do that,  _    ?

“ This is not a good essay,” said the lecturer. “I find your arguments convince”.

Because not food is as nutritious for a baby as its mother’s milk, many women are returning to the practice of breast feeding

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

Either humans and animals learn by experience, and what is learned influences the planning and carrying out of simple actions.

Several comet are discovered each year, but very few of them are bright enough to be seen without the aid of magnification

Although they reflect a strong social conscience, Arthur Miller’s stage works are typical more concerned with individuals than with systems.

Vitamin E, which is found in nutritious foods such as green vegetables and whole grains, action as an antioxidant in cell membranes.

Before dinosaurs became extinct, plant life is very different on Earth.

Can I borrow your scissors? Mine …….not sharp enough.

The builders of the variety ancient cliff ruins scattered throughout the canyons and mesas of the arid Southwest of the United States are known as the cliff dwellers.

He has made a lot of mistakes in his writing because his carelessness.

Mr. Smith is going to buy a new Japanese car, doesn’t he ?

The vase has the same design, but it is different shaped from that one.

Humus is formed during soil microorganisms decompose animal and plant material into usable elements by plants 

There are many ways to preserve fruit, for example freezing, canning and to dry