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The war has badly damaged the country’s ______.

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The mining project threatens one of the world's richest areas of __________.

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We must improve the environment through __________ design and greener buildings.

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In addition, more ______ zones for walking and cycle paths will be made available for people in all neighbourhoods.

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The Saudi government is investing billions in __________ to support the enormous influx of people in Mecca.

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Visitors can wander around here without difficulty because most of the antique area is now a pedestrian __________.

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The holiday cottage has many green touches, including __________ cleaning products.

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Eco-friendly transport systems will reduce greenhouse gas ______.