Australia is Australia's country. Australia is both a country and a continent.
Australia's largest, and only, country is Australia.
Australia is the only country on the continent of Australia.
On the continent of Australia there is one country: Australia.
The only country in Australia is Australia.
Australia is a self-contained country, so ... the largest country in Australia is Australia. It is also the largest country in the region of Australasia.
That would be Australia, which is the only country in Australia.
Australia is both a country and a continent
The only country on the continest of Australia is Australia. The country of Australia is made up of the Australian mainland, the island of Tasmania and other islands.Australia is the only country in Australia. Australia is both a country and a continent.
Australia is all ONE country. It doesn't have any smaller countries inside.
The country of Australia occupies the continent of Australia in the Southern Hemisphere.
Australia is already a country but a city in Australia is Sydney.