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
答
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