阅读理解Good and bad manners（礼仪） make up the social rules of a country.They are not always easy to learn because they are often not written in books.Let's see some social rules in Britain.
In the past，most British women didn't go to pubs（酒吧） because it was not considered good behavior for a woman.Now both women and men can drink freely in pubs.
Visitors to Britain often see British people wait in line in public places.It is considered impolite to get on a bus without waiting your turn in line.And if you don't wait your turn，the other people in line will probably warn you to line up loudly.
In some countries it is considered bad manners to eat in the street.However，in Britain it is common to see people having a snack while walking down the road.
British people used to be surprised to see young children in restaurants in the evening because children were not usually taken out to restaurants at night.These days children are playing a more active role and they are now accepted in many restaurants at night.
In recent years，many British companies have banned smoking in their offices and even in the whole buildings.Smoking is also banned on the London Underground，in cinemas and theaters and on most buses.It can be seen less and less in public places.It is also considered bad manners to smoke in someone's house without asking the owner.
Social rules are an important part of every country.The British have an expression for these"unwritten rules"：When in Rome，do as the Romans do.
