is brother it john"s连词成句

不管采不采纳,我的回答就在这里
it is John's brother.
一般疑问句：
Is it John's brother?
My sister is eating a big cake
Is your sister eating a big cake?
再问： eating sister big a my is cake 造句 疑问句
再答： 刚提交就看到你的补充，已经回答了

还有别的吗？一起追问