Everyone has their own way of life.这句话用their还是his 还是都可以用.好像有道词典两个都行.why?

Everyone has their own story 还是 stories. 是 everyone have their own attitude 还是 everyone has their own attitude Everyone has (his/their) own (answer/answers)?应该用哪个 Everyone has their own place in the sky的意思` Everyone has their own way of .Everyone has their own way of________.(relax)是relaxing还是relaxation为什么? Everyone has their own friends,so have I.这句话是否有错误?Everyone has their own friends,so have I.这句话是否有错误? ups and downs 例如；Everyone has ups and downs during their lifetime. Everyone has their own story, I just to appease themselves是什么意思 everyone has their own _(way) of relaxing在这里way 用单数还是复数 In that big office,everyone ____ a computer on their deskA.have gotB.has gotC.their isD.there are 请问：每个人都有各自的原则 可以说成是：Everyone has their own principles.我想问能用their吗? everyone has his day . Everyone has a do one's fair 这个句子里面的：one where everyone has a fair shot and everyone does their fair share. 英语问题 everyone的格是用什么?比如Everyone has（ ）own （） A.their dishes B.his dish C.its dish肯定的才说哦 关于——everyone has their own dream的问题everyone指群体中的一个人,那么为什么要说是their own dream而不是his own dream呢?且既然是their own dream,那么为什么要是everyone has 而不是everyone have呢? everyone has a soul that belongs to their own but is different from others.everyone has a soul that belongs to their own which different from others is.这个可以吗? everyone has their own way of relaxing/relaxation?为什么是relaxing 是形容词耶?我怎么觉得是relaxation?