第一节: 单项填空(共15小题；每小题1分，满分15分)　

21．If ________ person’s lifestyle is destroyed, they can do _______ extreme things.　　

　　　 A．a;/　　　　　　　　　　　 B．a; the　　　　　　　　　 C．/;/　　　　　　　　　　　 D．the; /

35.　 --- ______ that he managed to get the information?

---Oh, a friend of his helped him.

A. Where was it　　　 B. What was it 　　　　　　　 　　　　　 C. How was it　　 D. Why was it