Last year, some groups of students in their community (社区) made a survey about “How do people spend their free time? ” The following diagrams(图表) show some results of it:
Diagram (1): Hours for people of different ages who surf the Internet in a week.

Diagram (2): Different days people go to the library. (library attendance)

（%）

Diagram (3): Different programs people like.

People aged            spend the most time surfing the Internet every week.

A．7—16

B．17—30

C．31—55

D．over 56

The word “attendance” in Diagram (2) means “            in the library”.

A．the hours people spend	B．the number of people
C．the number of books	D．the days people spend

How many people go to the library on Saturdays?

A．About 20%.	B．About 40%.
C．Over 60%.	D．More than 80%.

Which of the following is TRUE according to the diagrams?

A．The fewest people like watching music programs.

B．Sports are the most people’s favorite programs.

C．People seldom go to the library on weekdays.

D．Half of the people like watching news and cartoons.

The three diagrams show us the results of a survey about           .

A．what people do every day	B．people’s different habits
C．people’s different lifestyles	D．how people spend their free time