One of the most difficult questions in defining sleep is “What are the functions of sleep?”

Choose the best option:

Human beings have ____ great influence on _____ world.

All of the mammals, dolphins are undoubtedly among the friendly to human.

We call her as ‘Auntie Flo’, though she is not really in any relation to us

For thousands of years, people have used some kind of refrigeration cooling beverages and preserve edibles

From the airplane, passengers are able to clearly see the outline of the whole island

The peasant’s wife, who have been married for four times, has just had her third baby

In 1977, Kathleen Battle was hired by the New York Metropolitan Opera, where her became the star soprano

He has been hoped for a raise for the last four months, but his boss is reluctant to give him one.

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

Choose the correct answer to complete the sentence. "Global warming has severe impact_____ water supplies."

Nuclear powers production in the us is controlled by the Nuclear Regulatory Commission [NRC].

He warned me to make an eye on my luggage as that place was full of thieves

If one has a special medical condition such as diabetes, epilepsy, or allergy, it is advisable that they carry some kind of identification in order to avoid being given improper medication in an emergency.

The intent of the Historical Society is to restore old buildings and the increase of interest in the history of the area.

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

The diameter of the Sun is more than one hundred times greater than the Earth.

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

Since fireworks are dangerous , many countries have laws preventing business to sell them.

The ancient Romans used vessels equipped with sails and banks of oars to transporting their armies

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