第二部分：英语知识运用 （共两节，满分35分）
第一节 语法与词汇（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. 请说出划线部分的句子成分。
The police observed a man enter the bank.
A．状语 B. 宾语 C. 定语 D. 宾语补足语
22. This is a ________ book that you may ________ in daily English study.
A. referring; refer to B. referring; refer
C. refrence; refer to D. referred;refer to
23. How do you know the effect the medicine ________ your illness if you don’t try it?
A. had on B. has on C. takes D. take on
24. The naughty boy who ________ in bed ________ to his parents, saying that he was ill and couldn’t go to
