______in a science competition, the three students were awarded scholarships totaling $ 21, 000.
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A
To be judged the best
B
Judged the best
C
Having judged the best 
D
Judging the best
推荐题目
We finally managed to make the customers _______ of the quality of the vehicle.
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A
to convince
B
convincing
C
convince
D
convinced
 Time should be made good use of ____ our lessons well. 
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A
learning
B
learned
C
to learn
D
having learned
The boy insisted ______ in a nearby school. 
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A
to be taught
B
being taught
C
on being taught
D
on teaching