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：在缺词处下加一个漏子符号（/\），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. 每处错误仅限1词；2. 只允许修改10处，多者（从第11处起）不计分。

I had an interested experience last year. After I had left a small village in the south of French, I drove on to the next town. On the way, a young man waved me. I stopped and he asks me for a lift.. As soon as he had got into the car, I said good morning to him with French and he answered in the same language. Apart from a little words, I don’t know any French at all. None of us spoke during the journey. I had nearly reached to the town, when the young man suddenly said , very slow, “ Do you speak English?” As I soon learned, he was English him!

一个含有n个顶点和e条边的简单无向图，在其邻接矩阵存储结构中共有______个零元素。

A．e
B．2e
C．n²-e
D．n²-2e