He is______about his chances of winning a gold medal in the Olympics next year.A

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问题 He is______about his chances of winning a gold medal in the Olympics next year.

选项 A、optimistic
B、optional
C、outstanding
D、obvious

答案 A

解析 optimistic：“乐观的，有信心的”；optional：“可选择的，随意的”；outstanding“突出的”；obvious：“明显的，显而易见的”。

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Heis______abouthischancesofwinningagoldmedalintheOlympicsnextyear.A