Choose the best option:

The area is roped off because the water is seriously polluted.

Medical research indicates that large amounts of Histamines can responsible for cold, high fever, and other respiratory reactions.

“How does the human brain work?” remains one of the most profound questions confront modern Science.

In the 1920’s, cinema became an important art form and one of the ten largest industry in the United States.

There is a widespread belief that the economical situation will improve.

There was a very interesting news on the radio this morning about the earthquake in Italy.

Until Hollywood invented him, Leonardo DiCaprio was practically unknown.

The ...... friendly products are designed not to harm the natural environment.

You wanted me to tell you about what I was doing here and how was my life .

The early periods of aviation in the United States was marked by exhibition flights made by individual fliers or by teams of performers at country fairs

Inventing by Roger Bacon, the magnifying glass led to the creation of other scientific tools which have produced immeasurable scientific progress.

Since it lives in the desert, the collared lizard depends from insects for water as well as for food.

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

Choose the correct answer to complete the sentence. "In the past, a lot of countries ______ having contributed to global warming"

When Cliff was sick with the flu, his mother made him to eat chicken soup and rest in bed

Economists have tried to discouragethe use of the phrase “underdeveloped nation” and encouraging the more accurate phrase “developing nation” in order to suggest an ongoing process.

The Red River, so named because of the red-colored sediment it carries, it is on of the main branches of the Mississippi.

The National Basketball Association will not let any athlete to continue playing in league unless he submits voluntarily to treatment for drug addiction.

A number of the Pacific Islands are volcanoes that have pushed up from the ocean floor, the others are the tops sunken mountain ranges

Water , ice, and snow play a role in affecting an Earth’s rotation

Most of the magnesium used in the United States comes from the sea water.