When we use more than one adjective before a noun, which are one idea, we connect them with a hyphen (-).
- He is a good-looking man.
(The meaning is not good man and looking man. The meaning is a man that looks good. They are one idea, so we link the adjectives.)
- The slow-moving train arrived late.
When the adjectives before the noun are different ideas, we put a comma between them.
- The furry, black cat.
(The meaning is that the cat is furry, and the cat is black.)
- When the adjectives come after the noun, we don’t use a hyphen.
Compare:
- The blue-eyed cat has just had a bath.
(adjectives/ blue-eyed, noun/cat)
- The cat with blue eyes has just had a bath.
(noun/cat, adjectives/blue eyes)
- The slow-moving train arrived late.
- The train was slow moving so it arrived late.
Now do the exercise.
