the happiness of a people为什么要加a

the happiness of a people为什么要加a keeping pets ----(bring)the old people a lot of happiness the happiness of two people a sense of happiness.为什么不用happy keeping pets ______ (bring) old people a lot of happiness A lifetime of happiness a number of 后面要加可数名词复数,为什么经常加people.people不是不可数名词吗? 英语翻译主要翻译faith of a people people不是复数的吗为什么能加 a chinese is spoken by a large number of people 为什么spoken后面要加i The woman meet the love is a lifetime of happiness neither of them is {a} member of the league要加"A"吗?为什么? all the happiness always be a friend of us