第二部分：英语语言知识运用(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. It was ____ exciting news that more than ten students in a single school were admitted to Tsinghua University in the same year.
A. one B. an C. / D. a
22. ____ has been heated discussion over which country bakes the world’ s best pizza: Italy, where pizza began or the US, where it was globalized.
A. It B. There C. That D. This
