I didn't know which botton to press这是不是一个宾语从句?讲明理由

I didn't know which botton to press这是不是一个宾语从句?讲明理由
I didn't know which botton to press
这是不是一个宾语从句?讲明理由

I didn't know which botton to press这是不是一个宾语从句?讲明理由
不是,是简单句.
主语：I,谓语 don't know,宾语：不定式which botton to press.
I didn't know which botton I should press.才是宾语从句

是的，非常典型的宾语从句。
I是主语，didn't know 是谓语动词，
动词后面的成分应该是宾语，而这里的宾语是有which用一句话引导，故为宾语从句

不是宾语从句。
which botton 构成know 的 宾语，不是一个句子，所以，不是从句。to press 用来修饰botton。

不是，是疑问词加不定式的用法，相当于一个宾语从句。
=which press i should press
但疑问词why 不能这样用，其他的都可以
i don't know where to go(what to do/how to do it...)

不是宾语从句。 宾语从句 宾语必须是句子！！
which botton to press不是句子，所以I didn't know which botton to press不是宾语从句。