课堂练习册，七年级下册英语，陕西人民教育出版社e。

一、1.concentrate2.experience 3.rules 4.learn 5.present 二、1.volunteering 2.noisy 3.changed 4.studying 5.to keep 三、1.It seems 2.How would 3.Whose house 4.should be allowed 5.don't;is 四、1.is strict with 2.is good for 3.concentrates more on 4.at present