按要求改写下列各句，每空一词。

1. Mr Green is going to travel around the world. (改为同义句)

    Mr Green is going to travel ______ ______the world.

2. The twins are going to the park tonight. (改为否定句)

    The twins ________ ________ going to the park tonight.

3. She is going to Beijing by train. (对划线部分提问)

    ________ ________ she going to Bejing?

4. There are over one hundred boys on the playground. (改为同义句)

    There are ________ ________ one hundred boys on the playground.

5. We are going to play football next Saturday. (对划线部分提问)

     ________ you going to ________ next Saturday?