1. We are going to the downtown by bus. (对划线部分提问)
      _______  _______  you _______ to the downtown?
2. They are going to hold an exhibition.(对划线部分提问)
     _______ are they going _______  _______ ?
3. He is going to the supermarket at 19:00. His friends are going to the supermarket  at 19:00.
    (合并成一句)
    He and his friends are going to the supermarket at _______ _______  _______.
4. He wrote an article to the newspaper. (用next month 改写)
    He is _______  _______  _______ an article to the newspaper next month.
5. She is going to be an artist. (用an engineer改为选择疑问句)
     Is she going _______ _______ an artist _______ an engineer?