It was a real racetime to get the project done.Luckily we made it.(·新课标全国Ⅰ 34)A. overB

问题补充：

It was a real racetime to get the project done.Luckily，we made it.

(·新课标全国Ⅰ，34)

A. over

B. by

C. for

D. against

答案：

A. over

B. by

C. for

(答案→)D. against

解析：

考查介词辨析。句意为：完成这项任务真是一场与时间的赛跑，值得庆幸的是，我们做到了。与时间赛跑，显然是对抗，用against。