按要求改写下列各句。
1. I'm going to water the flowers this afternoon.(对划线部分提问)
2. Rain comes from clouds.(对划线部分提问)
3. I can see some birds in the picture.(对划线部分提问)
4. We are going to the Science Museum tomorrow.(对划线部分提问)
5. She likes swimming.(变成一般疑问句,并做出否定回答)