Jack had to skip breakfast otherwise, he will be late for class.

I think he will come here, _    ?

One inventor that Thomas Edison can take credit for is the light bulb.

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

In human beings, as in other mammal, hairs around the eyes, in ears and in the nose prevent dust, insects, and other matters from entering these organs.

In its pure State, aluminum is a weak metal, but when combined with elements such as copper or magnesium, it is formed alloys of great strength.

Many small islands in the Indian Ocean are threatened by raising sea levels.

Before his death, John Dewey saw his philosophy have a profound influences on education and thought in the United States and elsewhere

The medical problems of parents and their children tend to be very similar to because of the hereditary nature of many diseases.

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

He said “Good morning ” in a most friendliness way.

His roommate is not very clever student, but he certainly works very hard indeed

Because there was no evidence against himself, Slade was released

David attended .......... Princeton University. 

Geologists find it useful to identification fossils in a rock sample because certain assemblages of species are characteristic of specific geologic time periods

An octopus has three hearts to pump blood throughout their body.

The number of teaching assistants required meeting undergraduate course needs is rapidly increasing.

This floor doesn’t need no more wax; there’s plenty already.

Nylon, a synthetic done from a combination of water, air and a by product a coal, was first introduced in 1938

A seismograph oscillation of the ground caused by seismic waves, vibrations that travel from its point of origin through the Earth or along its surface.

Choose the best option:

She is a famous ___. She tries her best to protect rare animals from extinction.