I have no idea what was that还是what that was呢 定语从句

Question

I have no idea what was that还是what that was呢 定语从句后也要陈述语序？

Answer 1

应该是
I have no idea what that was
这里 what that was是名词性从句 作同位语 是同位语从句 说明idea
其中 what是连接代词 作从句中的表语 that是从句中的主语 was是系动词
名词性从句 必须用 陈述句 语序
其实 任何 从句 都是 陈述句语序（个别的除外）

本句意思= i don't know what that was

Answer 2

I have no idea 是一个完整的句子 ，后面的what was that 相当于补充说明的，完整的句子应该是： I have no idea（that） what was that.

Answer 3

应该是 I have no idea what that was
从句一定要用陈述语序

Answer 4

what was that 是正确，追问

为什么呢 定从也要陈述语序吗

追答

i have no idea, 是一个句子。what was that 是另一个疑问句。没有人用what that was

i can said: what is it, what is that or what was.....

Answer 5

后者