二、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）
21. ［2012吉安模拟］In the United States, there is always _______ flow of people to areas of _______ country where more jobs can be found.
A. a; the B. the; a C. the; the D. a; a
22. —Could you tell me what he said just now?
—Sorry, I _______ what was going on outside.
A. had thought B. was thinking
C. thought D. think
23. —I really appreciate _______ of the information about my train, otherwise I might have missed it.
—You’re welcome.
A. informing B. to inform
C. informed D. being informed
24. ［2012重庆模拟］The boy is running impatiently here and there as if _______ something lost on the sports ground.
