短文改错（共10小题；每小题1分，满分10分）
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。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（A )，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（一），并在该词下面写出修改后的词。
注意：1.每处错误及修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
Mr. Johnson is a hard working teacher. Every day, he spends too much time with his work. With little sleep and hardly any break, so he works from morning till night.Hard work have made him very ill.“He has ruined his healthy. We are worried about him.”
That is which other teachers say. Yesterday afternoon, I paid a visit to Mr. Johnson. I was eager to see him, but outside her room I stopped. I had to calm myself down. Quietly I stepped into the room. I saw him lying in bed, looking at some of the pictures we had taken together. I understood that he missed us just as many as we missed him.