Althoughhedideverything________hec

发布时间：2020-07-27 02:57:30

Although he did everything ________ he could ________ the fire, the house was burnt to ashes at last.A.which, put outB.that, put outC.which, to put outD.that, to put out

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D解析【巧解导析】先行词为everything，关系代词只能用that，故A，C不正确；could后应跟to do，故B不正确．
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