Is it right to speak loudly on a bus why?

Is it right to speak loudly on a bus why? It is right to speak the truth. Its right to speak loudly in the library Have you ever told a lie?Is it right to tell a lie?Why? It is not p____ for you to speak loudly in public.We must gi It is poliet to speak loudly in public in American?He asks.（ –Is it polite to speak or laugh loudly _________? –No, I don It is time to go home now .I am on a bus on a r___dayand It is not polite _____(speak) loudly in the library. It’s not polite to speak LOUDLY in public. It's r____ to speak loudly in the reading room.. It's impolite to speak loudly _ public.