It was a real race time to get the project done. Luckily, we made it.
A. over
B. by
C. for
D. against
网友回答
A. over
B. by
C. for
(答案→)D. against
解析：题干中的it显然是形式主语，真正主语是不定式to get the project done。句意：完成这个项目真正是在和时间赛跑。幸运的是，我们赢了。
此处a race against time是固定短语，意思是“和时间赛跑”，故D正确。
【考点定位】本题考查介词的用法。