If being carried out successfully, the plan will completely change the traffic c

游客2023-12-27 8

问题 If being carried out successfully, the plan will completely change the traffic conditions in the city.

选项 A、carried
B、is carried
C、having been carried
D、to carry

答案 A

解析结构应用本句考察的是省略的用法：当状语从句的主语和主句的主语相同时，状语从句可以用分词短语作状语。本句完整的句子应为“if it is carried out successfully...”，变成省略句时，直接用“if+过去分词”，因此A为答案。

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