Q
Hard 1 Mark
English Subject-Verb Agreement
She is one of those doctors who _____ tirelessly to help their patients.
Explanation
The antecedent is 'those doctors' (plural — many doctors work this way), so the relative clause verb is plural: 'work'.
Reference: Skoolyst English Grammar Series , Page 1
Hint
Identify the antecedent of 'who' — is it 'doctors' or 'one'?
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