Social life in America varies tremendously (极大地)from office to office. Big companies may have clubs, sports team, trips, dance classes, or other employee activities which you can join or not as you like, while small companies usually can’t afford these activities.
　　In general, people go to lunch with each other by invitation when they feel like it. Usually people of high rank would invite those of lower rank rather than the other way around, but lines are not closely drawn. Except for special occasions, every one pays for himself or herself regardless of(不管)whether or not an invitation is offered.
　　It is quite acceptable for men or women colleagues(同事), single or married, to go out together for lunch. This may be the extent(范围) to which your office friends will invite you. Although in general Americans readily take people home with them, they often do not want to mix business and social life, If this is the case in your place of work, you will have to seek your friendships through other channels.
1). How does social life differ from office to office in America?
A. Employees in big companies enjoy more activities.
B. Employees in small companies enjoy more activities.
C. Employees in big companies make more friends.
D. Employees in small companies go to lunch together more often.
2). Who usually pays for the food when your office friends invite you to lunch together?
A. Your best friend pays.
B. Your friends pay half.
C. Every one pays for himself or herself.
D. You pay half.
3). When someone invite you, you ______.
A. must join them
B. should be polite
C. should pay for them
D. make a decision by your own will
4). According to the passage, it is usually ______who invite office workers.
A. people of higher position B. people of lower position
C. the customers D. close friends
5). What should you do to get friendships if your colleagues do not want to mix business and social life?
A. You should visit your colleagues^, home more often.
B. You should refuse to go to your colleagues^, home.
C. You should try to make friends with others.
D. You should work harder and get praise of your colleagues.