21. We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______ success.
A. /; a B. the; / C. the; a D. a; a
22. For sustainable development, the government has decided to give _______ to those energy-conserving and environment-friendly businesses in many aspects.
A. profit B. interest C. preference D. advantage
23. Located ________ the eastern coast of China, the village is fairly new _______ only a small population of less than 3,000.学
A. off; with B. on; with C. in; of D. on; in
