1)Tom is one of the students who were late this morning.
2)Tom is the only one of the students who was late this morning.
在1)句中,who的先行词可以是one of the students吗?如此的话定语从句的谓语动词为复数。
《牛津英语使用方法指南》第四版130.1指出:
在 one of the ... 这种表达方法后面,以 who,which 或 that开头的关系从句中既能够用单数动词,也可以用复数动词。
所以,下面的句子是正确的:
Tom is one of the students who were late this morning.