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。
21. Your room is terribly dirty; you get it cleaned in two hours, or Mum will be angry.
A. can B. might C. shall D. may
22. —Mr Smith, ______ John ______ this week? A friend of his is coming to see him this afternoon.
—No. He is on holiday.
A. has; worked B. is; working C. did; work D. does; work
