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)
从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
21. I’m sorry. I was under____impression that you were____ general manager of your company.
A．an；/ B．/；a C．an；a D．the；/
22. —I see you got a “D” in biology. _______ ?
—Well. I found that subject hard. I think I’ll drop it for history.
A. How about that B. What for C. How come D. What’s your next plan
23．Of the two brothers, Bill is ______ younger one, and he is a quiet boy, ______ that most adults like very much.
A. a; one B. a ; the one C. the; one D. the ; the one
24. —Why is your wife wearing a mask in such good spring?
—Because she is_________ to flowers.
A. fragile B. cautious C. addicted D. allergic
25. Boys and girls, you should know what a great difference good manners in public will ________ to a person.
A. owe B. belong C. contribute D. make
