Грамматика и Лексика
Преобразуйте, если это необходимо, слово NATIONAL так, чтобы оно грамматически соответствовало содержанию текста.
He proceeded to win a series of __________________ tournaments, becoming the official world champion in 1975. His reign as the world champion came to an end only when he was defeated by Garry Kasparov in 1985.