the boy won the prize.A. In surpriseB. To our surpriseC. Be surprisedD. Be surprising

问题补充：

, the boy won the prize.

A. In surprise

B. To our surprise

C. Be surprised

D. Be surprising

答案：

A. In surprise

(答案→)B. To our surprise

C. Be surprised

D. Be surprising

解析：句意：让我们惊奇的是，这位男孩赢得了奖章。To one’s surprise 让某人惊奇的是。。。。。。固定搭配，故选B。