第二部分: 英语知识运用
第一节: 单项填空(每小题1分,共15分)
21．What lessons China can draw from financial crisis（金融危机）in the United States has become hot topic in Beijing.
A. the; a B. a; a C. /; the D. the; /
22.It is __ _____ he often fails in exams ________ makes his parents worried about him.
A. what; that B. that; what C. that; that D. /; that
