質問: The phrase "doko kara kimasu" is translated as "where do you come from" . I suppose this a short version of "anata wa doko kara kimasu ka" . If I want to ask where does he come from? I suppose I should say "kare wa doko kara kimasu ka" . Can in this sentence the pronoun also be omitted if the context makes the "kare" understandable (let's suppose it was already stated in a conversation we were talking about *him*), or only anata can be omitted? In which cases pronouns can be omitted in questions?
回答: In case the pronoun is already known between/among those who are making a conversation, the pronoun is omitted almost all the cases. If not, everybody feels the question is tedious.