He is -------- about his chances of winning a gold medal in

问题描述：

He is ________ about his chances of winning a gold medal in the Olympics next year.
A.optimistic
B.optional
C.outstanding
D.obvious
1个回答 分类：英语 2014-11-29

问题解答：

我来补答
a,乐观的
 
 
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