many illnesses in refugee camps are the result of inadequate sanitation

There has been a hot debate among the scientists relating to tát the pros and cons of using robotic probes to tát study distant objects in space.

Her style of dress was conservative. She never wears items that are too tight, short or low-cut.

Many of the immigrants have intermarried with the island's original inhabitants.

For environmental safety, we need to tát find ways to tát reduce emission of fumes and smoke of factories.

Nylon is a man-made fibre, the use of which has helped more people to tát have cheaper and more colourful clothes to tát wear.

The advances of commercial airplanes resulted in a shrinking world.

We have to tát suffer from traffic congestion and pollution every day.

Many animals were born in captivity. Resultantly, they tự not always breed well.

The African rhino is an endangered species and needs protecting.

We can protect many species by keeping them in wildlife reserves.

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Scientists are trying to tát find an energy that consumes less fuel.

Modern buildings are designed to tát maximize natural light.

It's wise to tát use local fresh produce which is in season.

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