单选题 Shanghai is one of the largest cities in the world that ______ large populations each over ten million.
A. has B. have C. had D. are

【正确答案】 B
【答案解析】[解析] one of the+名词(复数)后面的限制性定语从句的谓语动词用第三人称复数，但是the only one of the+名词(复数)后面的限制性定语从句的谓语动词用第三人称单数。