'Boss' and 'Manager' can be used interchangeably?
She is going there tomorrow?
Can 'Boss' and 'Manager' be used interchangeably?
Is she going there tomorrow?
So my question is when to use the above type of questions (declarative) and when to use the latter ones (Interrogative)?
Although I used to use them both in any situation but some time ago a native speaker pointed out that you can't use both of them in any situation. But that person also said that he doesn't know the rules regarding this, and just 'know it'. So any ideas when to use which structure of question?