Celebrities (Famous people) have joined college students around China in the latest government activities to protect the environment. The Great Wall was the focus of attention, with a clean-up of the surrounding area, and tree planting. The volunteers hope their actions can raise public awareness about environmental protection. Lots of famous people take part in the activities. Familiar faces including film star Jackie Chan and TV host Yang Lan from Hong Kong were at the Great Wall. Over 200 college students joined them. They’re all volunteers for a government sponsored (主办) environmental protection program. A latest government report warns, China’s fragile (易脆的) environment and limited resources could hardly support economic development in the next five to ten years. However, Chinese citizens have long neglected environmental protection. Organizers hope these young people will influence people around. Pan Yue, vice minister of State Environmental Protection Administration，said, “The government can only make policy. But environmental protection also depends on public participation (参与). Public figures, ordinary people and the government should all join hands, thus we can make a beautiful and friendly environment.” Around the country, over 10,000 college students joined their peers in Beijing ---- planting trees, raising awareness about water protection and cleaning rubbish from rivers. From CCTV. com 13-28-2004 09:41 68.The underlined word “focus” in the first paragraph means ______. A. the places of interesting           B. old wall C. activity                           D. meeting or centre point of light or others 69. Which of the following is NOT mentioned in the passage? A. Recycling             B. Water conservation C. Planting trees         D. Government officers 70. Which of the following statements is right? A. College students get paid in planting trees. B. Environmental protection depends on public participation. C. Chinese citizens pay much attention to environmental protection. D. China’s environment is in good condition 71. Which is the best title of the passage? A. How to plant trees             B. College students work at the Great Wall C. Environmental protection       D. Volunteers protect environment