按给出的要求变换下列句子，要求每空限填一词。

1. They are cleaning the room. (改为一般疑问句)

    ________ they ________ the room?

2. Tom is mending his bike. (改为否定句)

    Tom ________ ________ his bike.

3. She has a book. (改为一般疑问句)

   ________ she ________ a book?

4. The pay phone is next to the library. (对划线部分提问)

    ________ ________ the pay phone?

5. Mike doesn't want to be a reporter. (改为肯定句)

   Mike ________ ________ be a reporter.