阅读理解。 As we know, Beijing has changed a lot. Most of the people feel much safer now. More and more trees are planted in the city. And every day you can see many old people play sports everywhere. The change makes the people in the city live a happy life. The small survey below is from the people who live in Beijing. One hundred persons were chosen to answer the questions last week. 1. From the survey, _______ of the people in Beijing care about health. A. 41% B. 80% C. 39% D. 52% 2. From the survey, we know most people want to live ________. A. in a busier place B. in a quieter place C. in a greener place D. on the mountain 3. Most people think working in Beijing is _______. A. bad B. good C. hard D. sad