2

Краткий ответ:

1. What have you done so far for the party?
2. Helen doesn’t believe in ghosts.
3. The parade starts at 10 am, so let’s hurry.
4. Petra looks upset because she has lost her lucky charm.
5. This rose smells nice and sweet.
6. The kids are watching TV at the moment.
7. Are you looking forward to your birthday party next week?
8. Owen hasn’t seen a firework display before.
9. Tom is exhausted because he has been digging in the garden all day.
10. Kate is tired. She has been working since morning.

Как выбрать время:

• Present Simple — факты, расписание и глаголы состояния:
  doesn’t believe, starts, looks, smells.
• Present Continuous — действие происходит сейчас:
  are watching; также текущие чувства или ожидания: Are you looking forward…?
• Present Perfect — действие завершилось, но важно сейчас, или жизненный опыт:
  have done, has lost, hasn’t seen.
• Present Perfect Continuous — действие длилось до настоящего момента, особенно с since, all day:
  has been digging, has been working.

Проверка форм: have/has + третья форма глагола — done, lost, seen; have/has been + глагол с -ing — been digging, been working.