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。
21.You can eat food free in my restaurant you like.
A. whenever B. wherever C. whatever D. however
22.The crazy fans patiently for two hours, and they would wait till the movie star arrived.
A. were waiting B. had been waiting C. had waited D. would wait
23. She her hairstyle in her hometown before she came to Chongqing for a better job.
A. would change B. has changed C. changed D. was changing
