第一部分:英语知识运用(共两节,满分30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和D 四个选项中,选出可以填入空白处的最佳选项。
21.  --How often do you go to the library?
   --______. 
A. In two days                   B. Every few days
C. Each third day                 D. Every two day 
22.  This book is ____ worth _____ .
A. well ; reading  B. very; reading        C. very; to read    D. well; being read
23.  Shelly had prepared carefully for her exam so that she could be sure of passing it on her first_______.
A. intention         B. attempt    C. purpose       D. desire 
24. The film “Assembly” is ____ an excellent one that I think it is worth seeing ____ second time.
A. so; the        B. so; a         C. such; the      D. such; a