题目内容
（请给出正确答案）
[主观题]
Section ADirections: In this section, there are 10 incomplete sentences. You are required
Section A
Directions: In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A , B, C, and D.
At the party, everybody congratulated the scientist ______ winning the award after his years of hard work.
A．to
B．on
C．at
D．about
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