单选题
In deciding to undertake dangerous pursuits, people A
usually
strive for their maximum personal ability rating, B
when
they C
are challenged
but can be victorious, rather than merely D
surmounting the mediocre
.
【正确答案】
D
【答案解析】解析：D应改为surmount the mediocre。rather than之前和之后接的动词在时态语态上应保持一致，所以应用动词原形。