根据短文内容及首字母提示，填写所缺单词。 Children's education is changing very fast today. In the past, teachers made children s 1 quietly for hours. They made them r 2 all kinds of things. The children had to go on r 3 things again and again until they knew them 'by heart'. Today, many teachers wonder if it is p 4 to make children learn at all. They say you can o 5 help them learn. They say you must let children learn and discover things for t 6 . But for some of the children, school is a kind of p 7 they can't escape(逃亡) from. They are there only b 8 their parents make them go. They get out of the classroom as soon as the teachers let them leave. Many of them want to find j 9 but the law(法律) will not let them work until they reach a certain(一定的) age. And so, they have to stay in school. O 10 they do not learn anything at all and hate every moment.