假定英语课上老师要求同桌之间交换修改作文,请你修改同桌写的以下作文,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(∧),并在此符号下面写出该加的词。

删除：把多余的词用斜线(﹨)划掉。

修改：在错的词下画一横线,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。

Two years before, I traveled to Brazil and I rented for a car. Unfortunate, I had an accident and hit another car, and I needed to stay in a hospital for at least two week. I called my parents, so I did not tell them what had happened. I knew that they will be worried about myself because I was so farther away, and that my mother would not sleep if she knew the accident. Therefore, I told them interested stories and how I was enjoying Brazil. As a result, nobody knew truth. I still think that it was the right thing to do.

绘图题：按《城市电力网规划设计导则》画出两座变电站，每座两台主变压器单侧电源双回供电高压架空网络示意图。