第二部分 英语知识应用（共两节，满分45分）
第一节：单项填空（共15小题；每小题1分，满分15分）
从题中所给的A、B、C、D四个选项中，选出可以填入空格的最佳选项。
21. Do you think it is______ great reward for Rio de Janeiro to hold______ Olympic Games in 2016？.
A. the, the B. a, an C. /, / D. a, the
22. Anne felt very nervous ______she gave a speech in front of so many students.
A. first time B. for the first time C. the first time D. by the first time
23. ______seems to be something important in today’s newspaper.
A. It B. That C. This D. There
