! Всегда употребляй с THE

the city centre

the capital city

the Internet, the radio

the sky, the sea, the ground

the north, the south, the east, the west

the Czech Republic, the Dominican Republic, the United Kingdom, the United States, the UAE

the Netherlands, the Philippines

the Alps, the Rocky Mountains, the Urals

the Sahara, the Gobi desert

the Canaries, the Bahamas