完形填空:the air here is fresh and clean.the people here___friendly.a:isb:arec:be

问题描述:

完形填空:the air here is fresh and clean.the people here___friendly.a:isb:arec:be

B are
主语是people,这是集体名词(表示一个集体),是个复数概念,主语是复数,谓语动词也用复数形式,所以be动词用are