根据短文内容和首字母提示，补全文中单词。

     Children's school is changing very fast today. In the past, teachers 1. k______ children sitting still

for hours. They made them memorize 2. d______ kinds of things. In other 3. w______, the children had

to go on repeating things until they knew them"by heart". Today, many teachers want to know if it is 

4. p______ to make children learn at all. They say you can often help them learn. They say you must let

children and find out things for 5. t_____.

      But for these children, school is a kind of prison. They are there only because their 6. p_____ make

them go. They get out of the classroom as soon as the teacher lets them 7.  l______. Many of them want

to find work, but the law will not let them work 8. u______ they reach a certain 9. a______. And so, they

have to stay in school. Often they do not learn anything at all and 10. h______ every moment.

1.______ 2.______ 3.______ 4.______ 5.______

6.______ 7.______ 8.______ 9.______ 10.______