．—What do you think made hi m so excited? —a scholarship to Harvard I suppose.A. He has w

问题补充：

．—What do you think made hi m so excited?

—a scholarship to Harvard, I suppose.

A. He has won

B. Winning

C. Because of winning

D. Because he has won

答案：

A. He has won

(答案→)B. Winning

C. Because of winning

D. Because he has won

解析：考查动名词做主语，句意：什么让他这么兴奋？--我猜是获得哈佛大学的奖学金。可知回答的what的内容，就是主语，用动名词。选B。