根据要求改写句子
1. Winnie has already been to Ocean Park. (改为否定句)
Winnie ________ been to Ocean Park ________.
2. Tom and Eddie like to help each other. (对划线部分提问)
What ________ Tom and Eddie like to ________?
3. The Earth is crying. We pollute the Earth. (两句并—句)
______________________________________
4. We drink clean water every day. (改为—般疑问句)
______________________________________
5. We leave rubbish here. (改为否定句)
______________________________________
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