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）
21．---Are you a football player?
--- _________.
A. Yes, I used to B. No, but I am. C. No, but I used to be. D. Yes, but I used to be.
22. Is this the factory _______ he worked ten years ago ?
A. that B. which C. where D. the one
