下面短文中共有10处语言错误，请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

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。

During the summer holidays this year, I thought I should do anything meaningful instead of staying at home, so I have got a job at a KFC fast food restaurant, worked there as a cleaner．I worked seven hours a day for three weeks．

The job was hard and bored and seemed endless, which made me so tired that I nearly gave it in half way, but I stuck to it with determinations．Every day I started off for work early in the morning and got home lately in the evening．Finally I finished the job before the new term begins．

Now, I understand that labor means．I think it is really successful experience．

外单位在运行中线路进行基建、大修、改造施工前，必须由运行部门（）。

A、书面安全技术交底

B、委派工作负责人

C、进行安全技术培训