按照要求改写句子。

1. This is my jacket. (改为一般疑问句)

     _____________ _____________ your jacket?

2. That is the canteen. (改为一般疑问句)

     _____________ _____________ the canteen?

3. We have lunch at school. (改为一般疑问句)

    _____________ you _____________ lunch at school?

4. My pants are blue. (对画线部分提问)

    _____________ _____________ are your pants?

5. It's 9: 10. (对画线部分提问)

    _____________ _____________ is it?