1. She does her homework at home. (改为否定句)
    She            her homework at home.
2. He's reading when it is raining. (就画线部分提问)
               he            when it is raining?
3. How's the weather in Beijing? (改为同义句)
               the weather            in Beijing?
4. I'm having a great summer in London. (改为一般疑问句并作否定回答)
               you            a great summer in London?
    No,           .
5. It's cloudy today. (就画线部分提问)
                                         today?