Which sentence has correct subject-verb agreement?

To determine which sentence has correct subject-verb agreement, it is important to understand the basic rule of subject-verb agreement. The subject and the verb in a sentence must agree in number. This means that a singular subject should take a singular verb, while a plural subject should take a plural verb.

Let's take a look at two sample sentences:

1. The dog chase the ball.
2. The cat chases the mouse.

In sentence 1, the subject is "dog" which is singular, but the verb "chase" is in the plural form. This creates a disagreement in number, making sentence 1 incorrect.

In sentence 2, the subject is "cat" which is singular, and the verb "chases" is also in the singular form. The subject and verb agree in number, making sentence 2 correct.

Therefore, the sentence "The cat chases the mouse" has correct subject-verb agreement.