问题: It’s said that the scientific research that aMarie and
It’s said that the scientific research that aMarie and the Joliot Curies _____their lives to finally ______their deaths.
A．devoting...caused B．devoted...causing C．had devoted...caused D．weredevoted...causing
解答:
It’s said that the scientific research that aMarie and the Joliot Curies _____their lives to finally ______their deaths.
A．devoting...caused B．devoted...causing C．had devoted...caused D．weredevoted...causing
句子主干结构是the scientific research caused their deaths.
that aMarie and the Joliot Curies devoting their lives to 是修饰语causing 是动名词，不能做谓语
研究是在死前做的，所以要用过去完成时态．
选Ｃ
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