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中，选出可以填入空白处的最佳选项。
21．When he left college, he got a job as reporter in a newspaper office.
A．/ ； a B．/ ; the C．a ; the D．the ; a
22．I must make clear that everyone here can’t be late for the meeting.
A．this B．that C．it D．you
