第二部分：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）
从每题所给的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．I don’t think we’ve met before. You’re taking me for ______.
A．some other B．someone else C．other person D．one other
22．You must keep on working in the evening, ______ you are sure you can finish the task in time
A．as B．if C．when D．unless
23．－Shall we go to the art exhibition right away?
－ .
A．It’s your opinion B．I don’ t mind
C．It’s all up to you D．That’s your decision
