Theykepttrying_________theymusthav

发布时间：2020-07-11 20:14:19

They kept trying _________ they must have known it was hopeless












A.if











B.because










C.when










D.where

网友回答

C解析when 在此的意思不是当……的时候，而是尽管、虽然的意思。又如：He walks when he might take a taxi. 尽管他可以坐出租车，但他却走路。
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