Нужно поставить глаголы справа в правильную временную форму. + ещё 2 предложения 7)Shortly before his death he wrote

7) Shortly before his death he wrote and signed the Russell-Einstein Manifesto, warning the people of the world about the danger of nuclear catastrophe. Albert Einstein is remembered as the scientist in the world. His theories have changed science forever.

8) It is generally thought that Albert Einstein is the greatest theoretical physicist who has ever lived.