№2. Объединим предложения в одно.
- I'd like to know if there is a fireplace in the house.
- I'd like to know when the school year begins.
- I don't know how they make Christmas cakes.
- I don't know what they are celebrating today.
- Please tell me whose Christmas gift this is.
- Tell me how old the story of Santa is.
Ответ: См. решение выше.