A local radio station said that several eruptions _____ in the past twenty years.A.had been taken placeB.took placeC.have taken placeD.had taken place
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D解析本题考查时态和take place的用法。take place 属不及物动词短语，无被动语态。由此可以排除A; in the past twenty years常用于完成时中，再结合句中的said可知，改用过去完成时。