Ответ:
Где удалось побывать детям летом:
- Sam was at the seaside in summer.
- Ben and his friends were at camp.
- Cathy was at the seaside.
- Betty and her mum were in the country.
Где не удалось побывать летом:
- Sam wasn't at camp.
- Ben and his friends were not at the seaside or at camp (they were in London).
- Cathy wasn't at the seaside (she was in London).
- Betty and her mum were not at home (they were in the country).
Ответ: Летом дети побывали на море, в загородной местности и в лагере. Не удалось побывать дома или в городе (Лондоне).
