Fee Nitrogen is chemically inert and combines with other elements only since very high temperature or pressures

A ………. is an enormous system of stars in outer space.

The symptoms of diabetes in early stages are slight that people don’t notice them

There always is one wise woman who is both feared and respectedher people

Genetic engineering is helping researchers unravel the mysteries of previously incurable diseases so that they can get to its root causes and find cures

Mutualism is relationship between animal species which in both benefit .

As a child grows on, its physical health is affected by  many elements in, water and food

The hreat of being dismissed do not worry me any more because I have started my own busines

Like the area in and on the Rocky Mountains, the Western Basins and Plateaus region of the United States offers much for the touris

It should not be assume that the lower the price, the happier buyer

In a person’s lifetime, brain can store 100 trillion pieces of informations

Ozone is unstable faintly bluish gas that is the most chemical active form of Oxygen.

In the nineteenth century, women used quilts to inscribe responses to social, economic, and politics issues

Choose the word or phrase among A, B, Cor D that best fits the blank space :
If boredom …….., there are plenty of windows from which to admire the ever-changing scene as the International Space Station orbits the planet every 90 minutes.

I passed all my exams - I’m …………!

Science and technology are part of the knowledges educated people

Find the word which has a different sound in the part underlined.

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

The authorities are worried the increase of drug abuse.

It was the red car _________crashed into mine yesterday.

The diary it was kept secret until the end of the war in fear of reprisals by the army.