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. We don’t live in _______ perfect world, but we could make it _______ better one.
A. a; the B. a; a C. 不填; a D. 不填; the
22. The population has increased _______ in this country, and millions have moved to cities.
A. rapidly B. urgently C. personally D. smartly
23. You should check the oil _______ beginning a long car trip.
A. until B. before C. about D. from
24. The room facing south _______ to be my father’s study, but now it is used as my bedroom.
A. was being designed B. has designed C. has been designed D. was designed
