第二部分：英语知识运用（共两节，满分35分）
第一节：语法和词汇知识（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。
21. I went to Beijing last week. Travelling by _____plane was quite________ exciting experience.
A. a; an B. /; the C. the; an D. /; an
22. ______ everyone knows, it is necessary for students to learn a foreign language.
A. That B. As C. Which D. What
