there are 和are there有什么区别.how many colours there are in a rainbow

问题描述:

there are 和are there有什么区别.how many colours there are in a rainbow
为什么不能用how many colours are there in a rainbow

肯定是are there
是一个问句啊
如果这句话前面还有句子的话后面的问句就要用陈述句语序