Question

 He realized his mistakes and took action to reduce the loss _________ it was too late.

A. until                         B. when                                C. before             D. as

 

Answer 1

【答案】

C

【解析】

试题分析：句意：他意识到自己的错误并且采取措施来尽可能地减少损失。before意为“在……之前”，即在太晚之前采取措施；故选C。

考点：考查连词。