2. Find the mistakes. 1) Jane is writing to her brother. 2) Jane is looking forward to the holidays. 3) The family is going to have breakfast at a restaurant. 4) In the afternoon, they are going to visit the zoo. 5) Jane's father wants to see the paintings. 6) On Saturday evening, they are going to watch a film at home. 7) On Sunday morning, they are going to stay at home.

2. Find the mistakes.

1. Jane is writing to her brother. (Incorrect, should be 'is going to write' or 'will write' for future plans or 'writes' for a habitual action if it were the case, but context implies future)
2. Jane is looking forward to the holidays. (Correct)
3. The family is going to have breakfast at a restaurant. (Incorrect, likely the family is having breakfast at home, given the context of other activities)
4. In the afternoon, they are going to visit the zoo. (Correct)
5. Jane's father wants to see the paintings. (Correct)
6. On Saturday evening, they are going to watch a film at home. (Correct)
7. On Sunday morning, they are going to stay at home. (Correct)

Ответ: 1. Jane is writing to her brother. (Mistake: Grammatically incorrect for future plans); 3. The family is going to have breakfast at a restaurant. (Likely mistake based on context of other activities).