He is _________ about his chances of winning a gold medal in the Olympics next year.
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A
optimistic
B
optional
C
optimal
D
obsessed
推荐题目
Brian was about to_______________ when he suddenly found an answer to the question.
#13668
A
make up  
B
look up  
C
turn up  
D
give up
Modern furniture would be ____ in a Victorian house.
#13889
A
out of place
B
out of sight
C
out of reach
D
out of practice
China’s population is about       of the world’s.
#14509
A
one fourths
B
one four
C
the quarters
D
a quarter