问题
选择题
--What do you think made Celia so happy?
--______ a prize in the recent competition.
A．As she won
B．Won
C．Winning
D．Because of winning
答案
答案：C
回答what要用名词或相当于名词的动名词。句意：什么事使得Celia如此高兴？在最近的比赛当中获奖让他高兴。
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