新概念三42课中的一个句子
文章中最后一句话In the eerie silence of the cavern,the only sound that could be heard was made by water which dripped continuously from the high dome above them.显然dome above them 中的them指的是dome,可是为什么用them不用it呢,dome明明是单数啊,请问是教材出错了吗?