Answer: For their vacation, Shane and Kelsey rented a small beach bungalow, but the unanticipated, fast-approaching hurricane forced them to evacuate and end their vacation early.
Step-by-step explanation:
To answer this question, we need to know what coordinate adjectives are. Coordinate adjectives are two or more adjectives describing the same noun. Here, both unanticipated and fast-approaching are describing the hurricane. To complete this question, we will insert a comma between the adjectives.