Решение:
- London is the capital of the USA. → London is the capital of the UK.
- The Sydney Opera House is in Canada. → The Sydney Opera House is in Australia.
- In Russia, people celebrate Thanksgiving. → In Russia, people celebrate Maslenitsa.
- Big Ben is a person. → Big Ben is a clock tower.
- Maslenitsa is a winter holiday when we swim in cold water. → Maslenitsa is a winter holiday when we burn a scarecrow.
Ответ: 1. UK, 2. Australia, 3. Maslenitsa, 4. a clock tower, 5. burn a scarecrow.