第二部分 英语知识运用（共两节, 满分45分）
第一节 单项选择（共15小题；每小题1分, 满分15分）
21. It’s really ____type I have been after, but I’d like to give it ____ second thought.
A. a ; / B. a ; the C. the ; a D. the ; the
22. ---When did you find your wallet?
---It was at noon ____ I played football on the playground.
A. that B. when C. then D. which
