Jack is______about his chances of winning a gold medal at the Olympics next year.

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问题 Jack is______about his chances of winning a gold medal at the Olympics next year.

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

答案A

解析 optimistic(about)a.乐观的，乐观主义的：令人乐观的。

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考博英语

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Jack is______about his chances of winning a gold medal at the Olympics next year.

考博英语

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