Вопрос:

2) Helen (cook) well. 3) Dan (play) two musical instruments. 4) Mike is in his room. He (play) the piano. 5) Now we (watch) an interesting film on DVD.

Ответ:

  1. Helen cooks well.
  2. Dan plays two musical instruments.
  3. Mike is in his room. He is playing the piano.
  4. Now we are watching an interesting film on DVD.

В предложениях 2–3 используется Present Simple для постоянных умений и фактов. В предложениях 4–5 используется Present Continuous для действий, происходящих сейчас.