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. ---Jane wasn’t in when Jack came, was she?
---________, but she left a few minutes later.
A. No, she was B. Yes, she was C. Yes, she wasn’t D. No, she wasn’t
22. There are only ___________ natural resources as there were thirty years ago.
A. as half much B. as half many C. half as much D. half as many
