第二部分：英语知识运用（共两节，满分30分）
第一节 单项填空（共10小题；每小题1分，满分10分）从A，B，C，D四个选中，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. What lessons China can draw from global financial crisis has become ________ hot topic among us students..
A. the; a B. 不填; a C. a; the D. 不填; the
22．The mail was ________ for two days because of the snow storm.
A. held out B. held off
C. held up D. held down
