______ came into being on January 1, 1901 when the Commonwealth

______ came into being on January 1, 1901 when the Commonwealth of Australia Constitution Act was enacted by the British Parliament.
【正确答案】：The Commonwealth of Australia
【题目解析】：The Commonwealth of Australia is a federation. It came into being on January 1, 1901 when the Commonwealth of Australia Constitution Act was enacted by the British Parliament. 参见教材P298。