Решение:
Необходимо вписать пропущенные слова в предложения, основываясь на контексте.
- The Ggantija temples are the oldest temples in Europe. They are over 5000 years old.
- The two bridges over Lake Pontchartrain are the longest over water in the world. They are nearly 24 miles long.
- Russia is the largest in the world. It is about 17,100,000 square kilometres.
- The Nile is the longest in the world. It is 6650 kilometres long.
Ответ: 1. oldest, 5000; 2. longest, 24; 3. largest, 17,100,000; 4. longest, 6650.