Over forty years (pass) ______ since the first bridge was built in the district.

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问题 Over forty years (pass) ______ since the first bridge was built in the district.

选项

答案 has passed

解析自从在这一地区建造了第一座大桥以来，四十多年过去了。在这里，since是连词，意为“自从”，引导时间状语从句。当从句用一般过去时时，主句用一般现在时或现在完成时。根据句意本句用现在完成时较合适。

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