human being 后面用are还是is human呢?

human being 后面用are还是is human呢? each human being用单数还是复数(is/are)? human being还是human beings? human后面加is还是are? Are you human being?RT with the development of science,human being livesin a virtual world,这句话里面有错的吗?特别是human being这里应该是单数还是,而且后面的live应该用单数还是? human being和human加的谓语用单数还是复数? 当human being表示人类时 用human being造句 each human being 后面接单数还是复数?it would be a blessing if each human being were stricken blind and deaf for a few days 我觉得后面应该接WAS 而不是WERE 我们不要上学!用英语怎么说You are no human being at all! a human being 一般用代词 it 还是 he or she 指代 ? how important air is to human being用what 还是how Human being are natural enemies of marine mammals. 什么意思? Human being are exploiting natural resource.为什么不用is? 英语翻译human beings speak with mouth还是human beings speak with mouths还是human beings speak with a mouth 为何主语是复数,后面要用单数呢? HUMAN BEIINGS加ARE 还是IS human being right? human being英语翻译