Ответ:

С I, you, we, they используется don’t, а с he, she, it — doesn’t.

  1. My father doesn’t do sport but he watches it on TV.
  2. We don’t have a lot of homework at the weekend.
  3. I don’t watch TV much. I watch films on my computer.
  4. My sister doesn’t play an instrument, but I play the guitar.
  5. My friends have hobbies but they don’t have jobs.
  6. Our teacher doesn’t listen to pop music.