Ответ:

  1. “It’s really hot in this room.” — “Wait. I will open the window.”
  2. Don’t worry. I have already bought the tickets.
  3. I have lived in this village all my life.
  4. “Why are you so dirty?” — “Because I have cleaned the basement.”
  5. When I entered the room, I couldn’t find my wallet. I think someone had stolen it.
  6. “Where has Ann gone?” — “I don’t know. She was here a couple of minutes ago.”
  7. Mr Reed has just sold his new painting.

Ответ: 1 — will open; 2 — have already bought; 3 — have lived; 4 — have cleaned; 5 — had stolen; 6 — has Ann gone; 7 — has just sold.