第二部分:英语语言知识运用(共两节, 满分35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.It is _______ great shock for all of us to hear _______ news that three university students lost their lives because of saving others. 
  A. the; a   B. /;a   C. /;/  D. a; the
22.According to the school rules, no student_______ go out of the school after eleven o’clock at night without the teacher’s permission.
  A. will     B. shall    C. must   D. may