Choose the best answer to complete each sentence.

Copenhagen has been voted the most ______ city in the world several times.

ecological friendly

ecologically soundly

eco-friendly

friendly ecologically

Find out the ANTONYM of the underlined word from the options below

The high-speed train link is responsible for one of the biggest urban regeneration projects in the area.

city

rural

countryside

remote

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We will need new technologies to generate energy and use it in clean and safe ways, only from fully ______ sources.

replaced

controlled

renewable

endurable

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The city has been gradually expanding the paths and has been promoting itself as a walkable and                             ..................community.

live

alive

living

livable

Choose the best answer to complete each sentence.

_______ structure in Ha Noi will be change with the development of satellite areas.

City

Downtown

Urban

Town

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If you want to raise rents, you have to                the housing first.

detect

upgrade

demolish

build

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Oil, natural gas, and coal are                 fuels.

renewable

non-renewable

new

alternative