Final answer:
The adjectives in the sentence are 'cheerful' and 'wet'. They describe the puppy and the grass respectively.
Step-by-step explanation:
The adjectives in the sentence are cheerful and wet. The word 'cheerful' describes the noun 'puppy' by telling us the puppy's mood or temperament. The word 'wet' describes the noun 'grass' by telling us the condition or state of the grass. These adjectives give us more information about the nouns in the sentence.
Learn more about Adjectives in a sentence