He is __________ about his chances of winning a go

行业问题 自考英语 已帮助 人

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

       A) optimistic                                                 B) optional

       C) outstanding                                               D) obvious

 

热搜:关于氨基酸代谢错误的论述是_________。