
So can this gap for instance be the real object of a question? If so, is there a gap in questions like mine functioning as subject? I also know that some theories of grammar say that there is a gap in wh- questions that the wh- word is extracted from. The first noun phrase test is not very good. But of course if we have a question like: There are also tests like " the subject is usually the first noun phrase in the sentence".



In a question like "Who hears a noise?", is the subject of the sentence who?
