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