In the following question, demonstrate the correct use of subject-verb agreement:Measles _ a contagious childhood disease.
Correct answer: A. Is
- A. Is
- B. Are
- C. Were
- D. Be
Explanation
If the noun is singular, use 'is'. If it is plural or there is more than one noun, use 'are'. For example: The cat is eating all of his food. The cats are eating all of their food.
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About Subject-Verb Agreement
Subject-verb agreement requires the verb to match the true subject in number and person, even when other words intervene. Questions cover collective nouns, compound subjects, indefinite pronouns, either and neither, relative clauses, quantities and inverted sentences, where proximity can falsely suggest the wrong verb.
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