stealla is here.为什么这里用is?

stealla is here.为什么这里用is? the air is fresh here.the air here is very clean.这两个句子中here位置为什么不一样呢?说一说here在句子中的位置. Is there a bank near here这句话为什么没错,here不是副词吗? since everyone is here 为什么加is Here is your book的陈述句是Here is your book is here.为什么? Here is a photo of my family.为什么用here Everything here is well.为什么here放在everything后面? here is 50 dollars,有错吗,为什么不是here are? 诸如here's the menu 或here it is 这是全部倒装还是?还有为什么要倒装 Here is Nobody is here today.有没有is.为什么? Here is some information,为什么不用are用is? 倒装句Here it isHere it is 为什么不能写成Here is it Is there any bread here为什么不能简写成Is here any bread ? here is some milk for you.为什么不能写成是here some milk is for you. here is the milk for you. here is 后面为什么要填the everyone is here,能不能用every one is here为什么? is everyone here可以写成is every one here吗?为什么