Вот образец wonderful-more wonderful-the most wonderful. остальные сделать crowded- modern - difficult - intelligent - dangerous - important-

Crowded-more crowded-most crowded
vodern-more modern-most modern
difficult-more difficult-most difficult
intelligent-more intelligent
dangerous-more dangerous-most dangerous
important-more important-most important
эти сравнительные прилагательные-сложные
а простые-
fast-faster-fastest