句型转换。

1. We will hold a sports meeting tomorrow. (改为被动语态)

    A sports meeting_______ ________ ________tomorrow.

2. You can keep the book for a week. (对画线部分提问)

     ________ ________ ________ ________ keep the book?

3. I became a teacher in 2001. (同义句转换)

    I _______ ________a teacher ________ 2001.

4. He went to England two years ago. (同义句转换)

    He________ _________ ________England________two years.

五人排成一行，甲、乙二人必须排在一起的概率P=______.