Mother______whenFatherarrivedhome.A.cookedB.wouldcookC.hadcookedD.wascookin

发布时间：2020-08-06 12:03:19

Mother ______ when Father arrived home.A.cookedB.would cookC.had cookedD.was cooking

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D解析解析：句型：sb was doing sth when sb did sth。
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