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）不计分。
Today, many students had their own hobbies. Some of them like singing, while others are crazy about take photos. I think it's meaningfully for students to have their hobbies, because the hobbies can benefit me a lot. First of all, after a long period of study, the hobbies can make them to feel relaxed. Beside, when they feel depressed, the hobbies can bring them happy. However, some students are such addicted to their hobbies that they spend less times on study. I think it's wrong. In my. opinion, the students are supposed to keep balance between their study and hobbies.
