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，并在答题卡上将该项涂黑。
21．—Shall I help you with the washing up?
— ．I'll do it later．
A．Of course B．Don't bother
C．That would be nice D．With pleasure
22．Wouldn’t it be ____ wonderful world if all nations lived in ____ peace with one another?
A．the; / B．a; / C．the; the D．a; the
23．He ____ as a teacher for many years and now he is a successful lawyer．
A．has worked B．had worked C．works D．worked
24．One more week, ____ we will accomplish the task better．
