题目内容：

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的一下作文。 文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均限一词;

2.只允许修改10处，多者（从第11处起）不计分。

One day a rich man took his son on a trip to the country in order to show his son if the poor lived, so he could be thankful to his wealth. They spent a couple of days and nights on the farm of that would be considered a very poor family. On their return back, the father asked his son to explain what he had learnt. The boy, who had remained silent and deep in thought on the journey home, replying in a way that shocked his father.

The boy said he wanted to become farmer. He envied the farmers who had the beautiful night star to give them light while her family had only expensive lanterns. His wish was to have a farm where he could go swimming in an endless river instead of the garden pool in their home. Finally the boy finished by saying, “Before the trip I thought we were rich but today I have learnt who is true rich.”

With this, the boy got up and walked away, leaving his father sat on their comfortable sofa, totally speechless.