Решение:
Вот вопросы, которые могли задать друзья, чтобы узнать больше:
- Did Mark have a birthday party on Saturday or on Sunday?
- Did Mark invite his classmates to his birthday party?
- Did Sue learn to make a cake?
- Did Steve and Daniel take part in the football competition?
- Did Sam go to the park next Sunday?
- Did they usually spend time in the park?
- Did they usually spend time in the park alone or with his friends?
Ответ: 1. a birthday party on Saturday or on Sunday?, 2. his classmates to his birthday party?, 3. to make, 4. in the football competition, 5. go to the park next Sunday, 6. time in the park?, 7. time in the park alone or with.