在宾语从句中,从句有特殊疑问词,该怎样变为陈述句

问题描述:

在宾语从句中,从句有特殊疑问词,该怎样变为陈述句
比如She wants to know where the bus stop is中
我不明白为什么把is放在最后面,
为什么不可以是She wants to know where is the bus stop

有些is可以放前面,比较特殊如:
what is the matter本身就是陈述语序,what is the matter 或 what was the matter,表示“怎么啦”,语序相对固定.,宾语从句里要采用陈述语序.
不管宾语从句是陈述句、一般疑问句或特殊疑问句,都要用陈述句语序,也就是说主谓次序不能颠倒.连接词+主谓结构
两个例句:
She wanted to know what was the matter.
I could not understand what was the matter with me.
上述例句摘自(张道真:现代英语用法词典)
其他地宾从就是
主句+连接词+从句主语+从句谓语+其它