Which sentence uses correct subject-verb agreement?

1. My teachers often gives homework on the weekend
2. The cat carefully steps across the fence
3. The clouds swiftly moves across the sky
4. My brother always want to cook dinner

The correct sentence that uses subject-verb agreement is:

2. The cat carefully steps across the fence.

The correct sentence that uses subject-verb agreement is:

2. The cat carefully steps across the fence.

The sentence that uses correct subject-verb agreement is sentence number 2: "The cat carefully steps across the fence."

Explanation:
Subject-verb agreement means that the subject and verb in a sentence should agree in number. In other words, if the subject is singular, the verb should be singular, and if the subject is plural, the verb should be plural.

Let's analyze each sentence to see if the subject and verb agree:

1. "My teachers often gives homework on the weekend." In this sentence, the subject is "teachers" (plural), but the verb is "gives" (singular), which does not agree in number. The correct form should be: "My teachers often give homework on the weekend."

2. "The cat carefully steps across the fence." In this sentence, the subject is "cat" (singular), and the verb is "steps" (singular), which agree in number.

3. "The clouds swiftly moves across the sky." In this sentence, the subject is "clouds" (plural), but the verb is "moves" (singular), which does not agree in number. The correct form should be: "The clouds swiftly move across the sky."

4. "My brother always want to cook dinner." In this sentence, the subject is "brother" (singular), but the verb is "want" (plural), which does not agree in number. The correct form should be: "My brother always wants to cook dinner".