Who __the South America in the history?

Who __the South America in the history? Is the USA in North America or South America? People in the South __a lot __the flood. How many countries are there in the South America? America is in south of____ The d______of America is very important in history 填空 australia is __the south of the world 英语阅读分析Passage 1 There was once a man in South America who ha who did best in the history test in the class? The history of the south is full of suffering in the post-wa 英语翻译Potatoes were first grown in the Andes in South America. 什么is a river in South America