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. The story shows that _____ knowledge of ____ first aid can make ______ real difference.
A. the; the; / B. a; /; a C. /; the; a D. a; /; /
22.—Would you like to go to the football game tonight?
一Oh，sorry. I _____to go with friends to see the film Lost in Thailand.
A. arranged B. have arranged
C. had arranged D. would arrange
23.---Where did you find the professor who made the speech yesterday?
--- It was in the hall _______ the students often have a meeting.
A. where B. which C. that D. when
