1.people,police,youth等做主语是,谓语动词一律用复数
eg.the police are looking into the accident
2.AUDIENCE,CLASS,COMMITTEE,FAMILY,team,group做主语时,如果指一个整体,就用单数,指每一个成员,就用复数.
eg;The football team is being rebuilt.
3.sheep,deer,fish,means,species等单复同形的,如表示单数意义,就用单数,如表示复数的,就用复数.
eg:many means have been tried.
全自己打的啊~