Complete the text with time and number words. People think Aborigines started living in Australia more than forty thousand years ago. The English explorer Captain Cook visited Australia in the eighteenth ¹. Australia is enormous and it takes fifty hours to drive non-stop from Sydney to Perth. That's more than two ²! It takes five ³ to fly from Sydney to Perth. There are around twenty-one ⁴ people in Australia. The hottest ⁵ in Australia are December, January and February. There Was a big party in Sydney on 31st December 1999, to celebrate the new ⁶. In new 2000, Sydney was the home of the Olympic Games for two ⁷.