I have read that great answer about i-adjectives being predicates. How does it reflect in questions?
Say, I have a dialogue:
— Is your city a beautiful one?
— Yes, it is.
— Is it big?
— Yes, it is.
As I imagine, a conversation would be something like:
—あなたの町はきれいですか。
—はい、そうです。
—あなたの町は大きいですか。
—はい、そうです。
Is it possible to change the third phrase to something shorter, like 大きいですか or even 大きいか? Would this still be polite?
What would a similar short question look like with the na-adjective きれい?