Read the following paragraphs and identify the sentence that is not appropriate in each of the paragraphs. 阅读以下段落，选出每一段中不合适的句子删除。(1)Some people think that teenagers should bury themselves in all school subjects. (2)In their view, learning various subjects can not only enlarge teenagers’ knowledge but also promote all-around development. (3)Additionally, compared with those who only focus on one subject, students with a wide range of knowledge can find different solutions to deal with problems they will face either at work or in life. (4)With the rapid development of economy and technology, more and more jobs require people to be armed with professional knowledge. (5)Last but not least, teenagers may be easily fed up with the dull school life if they concentrate on one special subject for a long time, while different subjects can add spice to their school life. (6)Meanwhile learning all school subjects is useful for teenagers to discover what they are really interested in.