题目内容：

下文中共有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）不记分。

Mr Wang is over seventy years old. He has retired（退休）.He is one of my respected teachers. He

teaches us  chemistry when we were in senior Grade One. He was old, and he     taught us good. He

tried his best to make his classes lively.   Mr Wang usually made good preparations for the lesson

and was strict to us, too. Whenever we made mistakes in our homework, she would ask us to

correct them. At that time, I was  poorly in chemistry. Mr Wang often helped me with my

studies  very patiently. With his help, I have made a rapid progress and   caught with the class. He

is always very kind to every student. As an experiencing teacher, he is respected and loved by

all  the students.