Ответ:

  1. Hilda is not playing golf with her friends in the garden now.
  2. I am not doing my homework right now.
  3. They are not having dinner in the room at the moment.
  4. Mr. Roper is not drawing his new picture in the park now.
  5. We are not listening to rock music at the moment.
  6. Janet is not going to the concert.
  7. Diana and I are not travelling about Brazil now.

В отрицательной форме Present Progressive используется схема: am/is/are + not + verb-ing.