语法与词汇 12.—This is a really lively party. There's a great atmosphere, isn't there? —______. The hosts know how to host a party.
【正确答案】 B
【答案解析】考查交际用语。“这确实是一个热闹的聚会。气氛很好，对吧?”根据“主持人知道如何主持一个聚会”可知回答第一个人时应该肯定，故选B。