五、按要求改写下列句子，每空一词。(10分)
1． Open the window, please. (改为否定句)
________ open the window, please.
2. I can see a bottle of water on the table. (就划线部分提问)
________ can you _________ on the table?
3. There are thirty students in the classroom. （对划线部分提问）
How _________ __________ are there in the classroom?
4. There are some birds in the picture. (改为一般疑问句句)
__________ there ___________ birds in the picture?
5. They often play football on the playground.（就划线部分提问）
________ ________ they often _______ football?