按要求改写句子。
1. This is a dress. (改为复数句子)
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2. These are old stamps. (改为单数句子)
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3. I'm going to watch more sports on TV. (否定句)
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4. There is one dish on the table. (就划线部分提问)
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5. I wash my face in the morning. (将主语改为Jenny)
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