On the rescue scene of the copper mine in Chile, the crowd cheered _________ a miner was safely brought to the surface.A.from time to timeB.any timeC.at a timeD.every time
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D解析考查时间状语从句，from time to time不时的，any time任何时候，at a time一次，every time每次，引导时间状语从句，后一个分句的意思为每次一个矿工被安全带到地面，人群就会欢呼起来。故选D。