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___ 3 , over 4,000 kilometres 4, spending ____ 5 hours on the train. The train was 6 and the food cooked by 7 was great. At first, the 8 was colorful. There were fields and 9 10 soil. After that, it was 11 . The sun 12 and there was no 13 and 14___in the sky. Suddenly, 15 farms 16 more than 100 years ago appeared in front of them. Alice sometimes talked to other 17 and listened to Chinese 18 . The stars 19 like 20__in the night. A hundred and fifty years ago, Australians brought camels from 21 , which is 22 23 Ghan, to travel to the middle of Australia. The trained camels were used