It was 1848. A carriage stopped in front of the best hotel in Charleston, South Carolina. The hotel

这是一篇记叙文。文章主要讲了Craft夫妇为了自由，摆脱奴隶制，实施了大胆的大逃亡计划。
【42题详解】
细节理解题。根据第五段“They were on their way to the North. In the North there was no slavery. They would be free there.”（他们正在去北方的路上。北方没有奴隶制。他们在那里是自由的）可知他们逃跑是因为他们想要自由。故选C。
【43题详解】
细节理解题。根据最后一段“They started their trip by train. At last they reached Boston. They were free!”（他们乘火车开始了他们的旅行。最后他们到达了波士顿。他们自由了!）可知“他们获得了自由”这一表述正确。故选D。
【44题详解】
推理判断题。根据第一段“It was 1848. A carriage stopped in front of the best hotel in Charleston, South Carolina.”（这是1848年。一辆马车停在南卡罗来纳州查尔斯顿最好的旅馆前）和第二段He was well dressed. He appeared to be a rich young farmer.（他穿着讲究。他看起来像一个富有的年轻农场主）可推知，逃到北方去花掉他们很多钱。故选B。
【45题详解】
主旨大意题。根据全文内容，尤其是根据第五段“She was escaping from slavery in Georgia. His "servant" was really her husband, William Craft.”（她是为了逃离乔治亚州的奴隶制。他的“仆人”实际上是她的丈夫威廉·克拉夫特）和第六段“It was dangerous to go north. Slaves could not travel unless their owners allowed it. The Crafts had to plan their escape very carefully.”（往北走是危险的。除非主人允许，奴隶不能出行。Craft夫妇必须非常小心地计划他们的逃生计划）可知这篇文章主要讲了Craft夫妇为了自由，摆脱奴隶制，实施了大胆的大逃亡计划，所以这篇文章最好的题目是“大胆的逃亡”。故选C。