Question

为什么是I don't know what's wrong with you?

Answer 1

其实，What's
wrong
with
you?
本身就是陈述语序。
英语中特殊疑问句不都是倒装语序，当疑问词在句中作【主语或主语的定语】时，特殊疑问句用陈述语序。所以，放到宾语从句时，句子不需要改变语序。
如
Who
is
standing
there?
who作主语，I
don't
know
who
is
standing
there.
Whose
father
likes
music?
whose
作主语father的定语，I
don't
know
whose
father
likes
music.
What's
wrong?
/
What's
the
matter?
What
happened
to
you?
都是疑问词作主语，句子都是陈述语序，所以，在宾语从句中都不需要改变语序。
而What
are
your
hobbies?
疑问词作表语，句子是倒装语序，所以，在宾语从句中需要改变语序。
希望我的回答能够帮到你，望采纳！
祝你学习进步，天天快乐。O(∩_∩)O

Answer 2

没错，这两句都是宾语从句，也是正确的的。
I
don't
know
what's
wrong
with
you?（
WHAT既作引导词，也是从句的主语。）
I
don't
know
what
your
hobbies
are?（WHAT
是引导词，但主语是your
hobbies
.

Answer 3

what's
wrong
with
you
?这一句的主语就是what，因此就是一个陈述句形式，比如：what
happened
to
you
yesterday?此时的what也是做主语，类似的还有：who
went
to
the
theatre
yesterday?

手工翻译，尊重劳动，欢迎提问，感谢采纳！

Answer 4

宾语从句改陈述语序，适用于宾语从句是“主谓宾”结构里，针对宾语的情况。
但是对于"主系表“结构，则不适用。what
is
wrong就是主系表结构，wrong是个形容词，be
wrong是表语，它的顺序是不能倒过来的。
类似的比如：I
don't
know
which
is
correct.
I
don't
know
who
is
older.
希望对你有帮助，祝你天天愉快～～