While building a tunnel through the mountain,_________.

tunnel · 发表于 2 小时前

While building a tunnel through the mountain,_________.
A、anundergroundlakewasdiscovered

B、therewasanundergroundlakediscovered

C、alakewasdiscoveredunderground

D、theworkersdiscoveredanundergroundlake

弃深爱 · 发表于半小时前

正确答案：D
答案解析：暂无解析

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While building a tunnel through the mountain,_________.

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