I would appreciate clarification of the usage of stoppet, stanset, and sluttet.
Why is 'sluttet' wrong?
That would mean 'ended'.
Yes, but without context, how do we know this does not mean 'where have they stopped reading' or 'where have they stopped working'?
why not Hvor har de stoppet?
That is also wright.
I typed 'standet' and it was correct!