Rewrite the following sentences(按要求改写句子，每格一词)：
1. Throw paper on the ground. (改成否定句)
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2. Here’s some hay. (改成否定句)
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3. Peter’s father’s got a big farm. (改为一般疑问句)
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4. There’s some corn on the ground. (划线部分提问)
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5. Mary’s father is a firefighter. (对划线部分提问)
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