请按要求改写句子，注意每空一词。

1. I usually have English classes on Friday morning. (将主语改写成He)

    He usually ____________ ____________ classes on Friday morning.

2. Peter often plays football after class. (改成一般疑问句)

    ____________ ____________ ____________ ____________ football after class?

3. My mother is at home. (加入副词usually)

    My mother ____________ ____________ at home.

4. She likes playing the guitar. (变成否定句)

    She ____________ ____________ ____________ the guitar.

5. The boy gets up at 6: 45 every day. (对画线部分提问)

    ____________ ____________ the boy ____________ up every day?

对于复杂的计算机网络协议最好的组织方式是层次结构模型。我们将计算机网络层次结构模型和各层协议的集合定义为 【11】 。