按要求改写句子。
1. You are at home now. (改为否定句)
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2. He is going to visit the farm next Friday. (改为否定句)
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3. The boy in black likes music. (改为否定句)
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4. She doesn't usually go to work on foot. (改为肯定句)
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5. You won't get fatter. (改为肯定句)
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6. He didn't come home on time. (改为肯定句)
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