Which sentence uses a proper adjective? A. Australia is both a country and a continent. B. Kangaroos live in the Australian outback. C. The land mass of Australia is almost twice the size of Europe. D. Two Australians told us some very funny stories
The answer would be letter choice D - Two Australians told us some very funny stories. Proper adjectives are formed from proper nouns, and in this case, the word Australia.