Which of the sentences below use correct subject-verb agreement?

Question

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Both of my dogs has collars on them.
Either the girls or the boy walk in the evening.
The hard tests come at the end of the fall.

Answer 1

The sentence that uses correct subject-verb agreement is:

The hard tests come at the end of the fall.

The other sentences contain errors:

• "Both of my dogs has collars on them." should be "Both of my dogs have collars on them."

• "Either the girls or the boy walk in the evening." should be "Either the girls or the boy walks in the evening." (The verb should agree with the nearer subject, "boy," which is singular.)