题目内容：

When you think of a classroom, such w1. as “quiet or clean” may come to your mind. But a modern British high school is n2. and untidy. Most students don’t wear uniforms and teachers often wear jeans and T-shirts.

Rules in a British classroom are s3. to those in Chinese schools. The students mustn’t talk, eat or drink. You can’t leave your seat u4. you are asked to. Raise your h5.when you want to ask a question.

Some British teenagers go to private schools. Discipline(纪律) is b6. there, as class sizes are smaller and students usually get more attention. But most teenagers go to p7. schools, where they don’t have to pay any money.

However, for many teachers, m8.pupils obey the rules is hard. The students have different abilities and hobbies. Some may not speak English as their first l9..

Can British bring good m10.back to the classroom? It just might be possible, with the help of a little Harry Potter magic.