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：在缺词处加一个漏子符号（/\），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。  

As a high school student, I like to talk with foreigners to practise my oral English but learn more about other cultures. There were two foreign teachers in our school in this term. They often go to the English corner so that we can have a chance to practise a language. I seize every chance to talk them. However, I sometime find they are not so interesting in what I say, and it’s hard for I to choose a suitable topic. I would like some advices about how to communicate proper with foreigners, and what topics to pick.

按形成以后至勘察前后有无变化，刑事犯罪现场可分为( )。

A．主体现场和关联现场
B．原始现场和变动现场
C．真实现场和伪造现场
D．第一现场和第二现场