二、单项选择(15分)
21. ____ _____ is known to us all is that the 2008 Olympic Games took place in Beijing.
A. It B. What C. As D. Which
22. We saw pieces of material, bones, wooden cups and leather bags, most of __ ____ were in good condition.
A. what B. why C. them D. which
21. ____ _____ is known to us all is that the 2008 Olympic Games took place in Beijing.
A. It B. What C. As D. Which
22. We saw pieces of material, bones, wooden cups and leather bags, most of __ ____ were in good condition.
A. what B. why C. them D. which