第二部分：英语知识运用（共两节，满分45分）
第一节：单项填空（共15小题）
从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. We have every reason to believe that ______ 2010 World Exposition in Shanghai will be ______ success.
A. /; a B. the; / C. the; a D. a; a
22. The _______look on his face shows that he’s greatly ___________.
A. terrified; terrified B. terrified; terrifying
C. terrifying; terrifying D. terrifying; terrified
