1. There is some water in the bottle. (改为否定句)
    There ________________water in the bottle.
2. This skirt is 49 yuan. (对划线部分提问)
    ________________ is the skirt?
3. We had our first class at 9:00 yesterday. ( 改为一般疑问句)
    _______ you ______ your first class at 9:00 yesterday?
4. My brother is reading a book under the tree. (对划线部分提问)
    ________ your brother ________ under the tree?
5. They are doing some shopping at the moment. (用an hour ago改写)
    They ___________________ an hour ago.