HUMAN BEIINGS加ARE 还是IS

HUMAN BEIINGS加ARE 还是IS human后面加is还是are? Are we human?为什么 human不加s human being 后面用are还是is human呢? human beings are human beings each human being用单数还是复数(is/are)? human being和human加的谓语用单数还是复数? human being还是human beings? Are you human being?RT we why we are human human可以加s么 human前面能不能加数词 human 是单数还是复数 human是单数还是复数 a human being a human kind可以加,A HR的全称是human resource还是human resources? Chinese food后面加is还是are someone加is还是are如图