假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅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限一词。
2.只允许修改10处，多者（从第11处起）不计分。
My father is an engineer work in a big company. He is such busy that he sometimes has to stay up late. Apart from this, he hardly has any times to take exercise. He has been on poor health for some time. My mother and I are worried that he may fall ill if he works too hard. These days I’m thinking why to develop my father’s interest in playing sports. Considered that today is Father’s Day, I decided buy a pair of jogging shoes for him. I secret put them on the desk in his study. When my father entered into his study this evening, he looked surprised, but he immediately realized my intention. He promises that he would go jogging every evening.