常见汉译英短语对应 — 英语词汇题

汉译英选择填空。中文句子：自从这座大桥建成以来，它大大促进了当地经济的发展，许多农民因此过上了富裕的生活。填空：Since the bridge ______, it has greatly promoted the local economy, and many farmers have thus lived a rich life. 选项：A. was completed　B. has been completed　C. completed　D. had completed