问题
选择题
－－What do you think has made Tom so excited?
－－_____ a prize in a lottery.
A．Winning
B．Won
C．He won
D．To win
答案
答案：A
本题考查非谓语动词。根据问句What do you think has made Tom so excited?回答应当为Winning a prize in a lottery has made Tom so excited.故动名词短语作主语，选A。