Which two sentences use coordinate adjectives? The dark, musty cellar was full of mice. We rode down a long dirt road on a sunny morning. The dark-haired, hazel-eyed baby was gurgling happily. Alan is wearing a pale blue sweater.

The correct answers are the first and the third options. Coordinated adjectives are adjectives found in a sentence which are next to each other and are used to describe a single noun. Dark and musty describes the cellar. Dark-haired and hazel-eyed describes the baby.