第27题: [单项选择]He is ___________ about his chances of winning a gold medal in the Olympics next year. A. optimistic B. optional C. outstanding D. obvious 参考答案:A 答案解析:[译文]他对自己明年在奥运会上赢得金牌十分乐观。
[题解]形容词辨义:optimistic“乐观的”,可与about连用,因此正确。optional“可选择的”;outstanding“突出的”;