请你写出一个比1小的正无理数是（    ）。

按每小题后的要求转换下面的句子，每空一词。

1. Jorden takes exercise three or four times a week. (对画线部分提问) 

    _______  _______  does Jorden take exercise?

2. I bought a newspaper on my way home yesterday. (对画线部分提问) 

      _______ did you  _______  on your way home yesterday?

3. He has never been to Shanghai before. (完成反义疑问句)

    He has never been to Shanghai before,  _______   _______?

4. The camera cost him 680￥ last month. (改为同义句)

     He  _______ 680￥ _______ the camera last month.

5. I'm sure I will have a good time in the coming school trip. (改为同义句)

   I'm sure I will  _______  _______  in the coming school trip.