【题目】It was a real racetime to get the project done.Luckiky，we made it.
A.over
B.by
C.for
D.against

【答案】D
【解析】against对抗，反抗；over在……上方，遍及；by靠近，通过，经由；for（表示对象、用途等）给，对，供；为了，关于。此句应为：a real race against time与时间赛跑。