Which of the following sentences contains a predicate adjective? 1. The cat chased the mouse. 2. She ran quickly. 3. The soup smelled delicious.

The soup smelled delicious.

The sentence that contains a predicate adjective is: 3. The soup smelled delicious.

To determine which of the given sentences contains a predicate adjective, we need to understand what a predicate adjective is. A predicate adjective is an adjective that follows a linking verb and describes the subject of the sentence.

Let's examine each of the sentences:

1. The cat chased the mouse. - This sentence does not contain a linking verb, so it does not have a predicate adjective.

2. She ran quickly. - This sentence does not contain a linking verb either, so there is no predicate adjective.

3. The soup smelled delicious. - In this sentence, we have the linking verb "smelled" that connects the subject "soup" to the adjective "delicious." So, the sentence "The soup smelled delicious" contains a predicate adjective.

Therefore, the correct answer is sentence number 3: "The soup smelled delicious."