the police are looking for the thief这句话中be动词为何是are

so are the police The twins are ___(police). the police here are helpful和police here are helpful有什么区别?选择题police和the police? The police 后加is 还是are The police are running a_____the thief. how poor the police is还是are? The police 后加is 还是are could you______ the TY是looking for还是looki for The police are searching.The forest for the lost girl The police are (s )for the prisoner in the woods The police are looking for the robber everywhere.同义句The police are______ everywhere______the robber . The police are strict here about e____ the speed limit. The police are searching the woods for a robber 翻译the police are looking for the missing gisl 改同义句 Now the police are looking for the boy.Now the police are _____ _____ the boy. His parents are police officers.They work in the police ________. There are three _________ in the office.A.police B.policeman C.policemen D.police officer the parents are both ______(police)police和policeman 有什么区别？