Theprofessormanagedtofindsomegrounds(facts)_________hisarguments．A.tobeba

发布时间：2020-08-13 14:52:43

The professor managed to find some grounds (facts)_________his arguments．A.to be based onB.to base onC.which to base onD.on which are based

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D解析考查关系代词which和be based on的用法，be based on意思“以……为基础”,介词on可以放在现行词which前,可知选D
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