He is ______ about his chances of winning a gold medal in the Olympics next year.

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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 (about)乐观的;令人乐观的:The public mood was optimistic and excited;optional可要可不要的;选修的(非必修的),如:Our attendance at graduation is optional;outstanding突出的,杰出的,如:Ivan is an outstanding chess player;obvious明显的,显而易见的,如:Of course your meaning was obvious.句意:他对于明年在奥运会上赢得一枚金牌很有信心。
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