Which sentence demonstrates correct subject - verb agreement?

The dog barks loudly in the driveway.

The sentence that demonstrates correct subject-verb agreement is:

"The dog chases the squirrel."

To determine which sentence demonstrates correct subject-verb agreement, we need to first understand what subject-verb agreement means. Subject-verb agreement states that a subject and its verb must agree in number, meaning they should both be singular or both be plural.

Now let's examine some sentences to find the one that correctly demonstrates subject-verb agreement.

1. The cat chases the mice.
2. The cats chase the mice.
3. The cat chase the mice.
4. The cats chases the mice.

Sentence 1: "The cat chases the mice."
In this sentence, the subject "cat" is singular, and the verb "chases" is also singular. Both are in agreement, so this sentence demonstrates correct subject-verb agreement.

Sentence 2: "The cats chase the mice."
Here, the subject "cats" is plural, and the verb "chase" is also plural. Both are in agreement, so this sentence also demonstrates correct subject-verb agreement.

Sentence 3: "The cat chase the mice."
In this sentence, the subject "cat" is singular, but the verb "chase" is plural. This results in a lack of agreement, so this sentence does not demonstrate correct subject-verb agreement.

Sentence 4: "The cats chases the mice."
Here, the subject "cats" is plural, but the verb "chases" is singular. Again, there is a lack of agreement, so this sentence does not demonstrate correct subject-verb agreement.

In conclusion, both sentence 1 ("The cat chases the mice.") and sentence 2 ("The cats chase the mice.") demonstrate correct subject-verb agreement.