Which sentence uses correct subject-verb agreement?

A. My brother always want to cook dinner.
B. My teachers often give homework on the weekend.
C. The clouds swiftly moves across the sky.
D. The cat carefully steps across the fence.

B. My teachers often give homework on the weekend.

The correct sentence that uses subject-verb agreement is:

B. My teachers often give homework on the weekend.

The correct sentence that uses subject-verb agreement is B. "My teachers often give homework on the weekend."

To determine the correct subject-verb agreement, we need to ensure that the verb agrees with the subject in terms of number (singular or plural).

In sentence A, "My brother always want to cook dinner," there is a disagreement between the singular subject "brother" and the plural verb "want." To fix the subject-verb disagreement, we should change "want" to "wants" to match the singular subject: "My brother always wants to cook dinner."

In sentence C, "The clouds swiftly moves across the sky," there is a disagreement between the plural subject "clouds" and the singular verb "moves." To correct this, we need to change "moves" to "move" to align with the plural subject: "The clouds swiftly move across the sky."

In sentence D, "The cat carefully steps across the fence," there is no subject-verb disagreement. The singular subject "cat" matches the singular verb "steps," making it correct.

Therefore, the correct sentence with subject-verb agreement is B. "My teachers often give homework on the weekend."