21. Wu Bangguo, ________ Chairman of the Standing Committee of the National People’s Congress （NPC）, delivered ________ work report on March 9,2012.
A. a; / B. /; a C. a; a D. the; a
22. A tour of the Forbidden City and the Great Wall, ________ of China’s long history and rich culture, certainly provided President Obama rare opportunities to gain first - hand impressions of China’s past.
A. symbols B. sights C. scenes D. views
