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Tom regrets harder at school.A.did not workB.having not workedC.not having workedD.not have worked

编辑:chaxungu时间:2026-04-24 12:53:56分类:高中英语题库

Tom regrets ________harder at school.
A.did not workB.having not workedC.not having workedD.not have worked在线课程C