根据要求改写句子。

1. Going to bed early is good for your health.( 用bad 写出一个选择疑问句.)

    _____ going to bed early good _____ bad for your health?

2. Don't smoke here. (同义句) 

    You _____ _____here.

3. You'd better eat more fruit and vegetables. ( 改否定句)

    You'd _____ _____ eat more fruit and vegetables.

4. He has a cough.( 划线部分提问)

    _____ is the _____  with him?

5. We should keep our rooms clean and open the windows often to fight SARS. (划线提问)

    _____ _____ we do to fight SARS?

6. They will leave for Beijing tomorrow.(改为一般疑问句)

     ______ _______ leave for Beijing tomorrow?

7. You must take care of yourself.(改为同义句)

    You ______ ________ take care of yourself.

8. He taught himself on the Internet.(改为否定句)

    He ______ _______himself on the Internet.

9. They are playing games in the park. (用next Sunday改写)

    They _____ _____  games in the park next Sunday.

10. May I buy some milk for supper tomorrow?(否定句回答) ,

      _____ you _____  .