to +verb affter it's

it's bad manners to run in the hause. it's bad manners to eat in public or in class. it's not good idea to invite without asking the host. it's bad manner talking a call during a conversation with frinds . it's impolite to walk into someone's home without taking off your shoes.it's accectable not take off serversin a place unless your're at a very fancy restaurant .it's impolite to talk very much in the class when the teacher is talking.