Необходимо раскрыть скобки, используя Past Simple.
1. Leonardo (achieve) many great things.
Leonardo achieved many great things.
2. He (create) a very accurate map.
He created a very accurate map.
3. They (construct) a canal system.
They constructed a canal system.
4. The idea (be) ahead of its time.
The idea was ahead of its time.
5. He (use) different materials for his models.
He used different materials for his models.
Ответ: 1. Leonardo achieved many great things. 2. He created a very accurate map. 3. They constructed a canal system. 4. The idea was ahead of its time. 5. He used different materials for his models.