He is one of the boys who__________here on time.He is the only one of the boys who__________here on time.A.has e; have eB.have e; has eC.has e; has eD.have e; have e
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B解析在“one of +复数名词+定语从句”的结构中，定语从句中谓语动词常用复数；在“the （only） one of +复数名词+定语从句”的结构中，定语从句中谓语动词常用单数。