帮一下忙 我真的不会，谢谢、

Before you go to another country, it is a great help if you know the language and some of the customs of the country.
When people meet each other for the first time in Britain, they say “How do you do?” and shake hands. Usually they do not shake hands after they haven’t met for a long time or when they will be away from each other for a long time.
Last year a group of German students went to England for a holiday. Their teacher told them that the English people hardly shake hands. So when they met their English friends at the station, they kept their hands behind their backs. The English students had learned that the Germans shake hands as often as possible. So they put their hands in front and got ready to shake hands with them. It made both of them laugh.
1. It is______ if you know the language and the customs of the country.
A. not useful B. not helpful C. very helpful　D. very sad
2. The English people usually shake hands when they ________.
A. meet every time B. meet for the first time
C. say goodbye to each other　 D. say hello to each other
3. Usually the English people don’t shake hands ________.
A. when they won’t be away for a long time
B. when they say “How do you do?”
C. when they just meet or say goodbye
D. after they haven’t met for a long time
4. Which is right?　
A. German people shake hands as often as possible.
B. English people like shaking hands very much.
C. German people hardly shake hands.
D. Neither the English people nor Germans like shaking hands.
5. This story is about ________.
A. shaking hands B. languages　 C. customs D. languages and customs
帮我写把