将以下句子进行排序 ①When Lincoln was eight years old, his father lost most of his land in Kentucky.②Lincoln’s mother died when he was nine years old.③When Lincoln was nine, his stepmother persuaded his father that Abraham should begin to go to school.④Lincoln was born in Kentucky.⑤He started school, but it soon closed.⑥The first winter they spent in Indiana they lived in a house with only three walls; the fourth side was open for a fire.⑦Lincoln’s father moved to Indiana after his father’s bankruptcy. （ ）