Last year, some groups of students in their community made a survey (调查) about “How do people spend their free time? ” The following diagrams(图表) show some results（结果） of it: Diagram (1): Hours for people of different ages who search the Internet in a week. Diagram (2): Different days people go to the library. (library attendance出席) Diagram (3): Different programs (节目) people like. 小题1: People aged spend the most time searching the Internet every week. A．7-16 B．17-30 C．31-55 D．over 56 小题2: How many people go to the library on Monday? A．About 20% B．About 60% C．Over 80% D．More than 40% 小题3: Which program do people like best? A．Cartoons B．Sports C．News D．Music 小题4: 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