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以下作文。文中共有10处错误，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仅限一词；2．只允许修改10处，多者(从第11处起)不计分。

I am writing to tell you something about the transportation in China. Over the past few decades we had developed an amazing network of public transportation. Besides, we have been decided to make efforts to make them much better. I am sure a network will satisfy your needs for traveling everywhere more convenient. People usually choose the means of transportation based with some aspects, such as the costs and the time needing. For example, businessmen are more likely travel by plane or high-speed train to save time while office worker tend to take buses or drive to work themselves. I believe you will quickly figure out when to get around once you are in China.