there are two libraries in this city, -----? A aren'there B arent'they C are two

问题描述:

there are two libraries in this city, -----? A aren'there B arent'they C are two

there are two libraries in this city, --A---? A aren'there B arent'they C are two
反意疑问句,前否后肯,前肯后否
译为:这个城市有2个图书馆,是吗?