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，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. ____73-year-old woman, who died of respiratory failure on Dec. 6, was confirmed to have been carrying ____H10N8 virus.
A. A, the B. The, the C. A, \ D. The, a
22. Chinese new traffic rules in 2013 give more severe punishment to offenders compared with ______ carried out in previous years.
A. that B. those C. one D. it
23. — Where did you get robbed of your handbag, Madam?
— It was at the stop ______ I usually wait for my bus for work.
