什么叫单数用is 复数用are

什么叫单数用is 复数用are belongings单数还是复数belongings用ARE 还是用IS Class One单数还是复数（用is 还是are) each human being用单数还是复数(is/are)? some water单数复数相同,为什么用is 而不是are? there is/are a few +复数 there is/are few+复数还是单数这两个句子谓语和后面所加的名词用什么呀亲! The Greens是单数还是复数“格林一家人”是单数还是复数?用“are”还是“is”?The Green family是单数还是复数？ There is / are no people 用单数复数?no 后是不是 可数名词 单数 复数 或是不可数名词都可. glasses是单数还是复数!eg：Where is my glasses?是用is还是are? 不可数名词复数形式前加are吗不可数复数也当单数对待吗?那是用is还是are 伦敦开幕式是单数还是复数,就是说用It is还是用They are如题 Some bags and a pig后面谓语用单数还是复数?用is还是are? 单数主语用is,复数主语全用are.帮我举个例,急 people后面的谓语用单数还是复数?people in Qingdao 是are 还是is 为什么？ 英语单数句五句,复数句五句,用There is或There are的,还要中文! My favorite lunch (are,is) fruit and cheese.该句谓语用单数还是复数?为什么? 下面的谓语用单数还是复数The bunch of grapes is/are in the bowl Business ethics是单数还是复数?后面用is还是are?