第二部分：英语知识运用(共两节，满分40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，选出可以填人空白处的最佳选项，并在答题卡上将该项涂黑。
21. Going to a British high school for one year was enjoyable experience for me, and I like the teachers with rich experience.
A. a; an B. an; / C．a; the D．the; an
22. I found the homework was not as heavy as I used to get in my old school, but it’s a bit challenging.
A. that B. it C. what D. which
