Постройте вопросы как в образце:
1.we buy the tickets for the concert?
Have you bought tickets for the concert?
2The game/fish?
3.you/do your homework?
4.Mark/open his present?
5.He/meet your sister?
6.Cosmo/eat all the cat food?

3. Have you done your homework?
4. Has Mark opened his present?
5. Has he  met your sister?
6. Has Cosmo eaten all the cat food? - якщо, Космо - людина.
6. Have Cosmo eaten all the cat food?- якщо Космо - тварина.