Following on from this question Asking "what's the pinyin/character for X?".
I've had difficulty previously asking native speakers which tone I should use for a particular character if I can't pick it by just listening.
The problem is they don't understand what I'm asking in most instances.
How do I say "Which tone should I use for this character?"
In the past I've used "第几声" for which tone, but this doesn't seem to be commonly understood.