Leonardo DiCaprio, an 5 _____ environmentalist since he was young, also the Leonardo DiCaprio Foundation, a non-profit environmental organization, in 1998. (FOUND)

Leonardo DiCaprio, an environmentalist since he was young, also founded the Leonardo DiCaprio Foundation, a non-profit environmental organization, in 1998. Пояснение: Здесь нужно использовать глагол to found в прошедшем времени, чтобы показать, что Леонардо Ди Каприо основал свой фонд в 1998 году.