第二部分英语知识运用（共两节, 满分35分）
第一节 单项填空（共15小题；每小题1分，满分15分）
21. Most experts agree that washing hands regularly is a ______way to prevent the spread of many diseases.
A. powerful B. illegal C. painful D. awful
22. The little girl seems to ____a lot since I last saw her.
A. have been changed B. have changed C. change D. be changing
23. It is normal for students to feel_______ before the examination even though they have prepared well.
A. serious B. anxious C. energetic D. surprised
