基本信息
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）
请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项, 并在答题卡上将该项涂黑。
21. According to _______ announcement by Guangzhou Price Bureau, _______ the new measures which have been taken recently are expected to cut the operation costs of each taxi driver by 1280 yuan.
A. the; / B. an; theC. /; theD. an; /
22. It was four o’clock in the afternoon _______ they got to the station.
A. that B. since C. when D. until
