i have worked harder than before ( ) grade 7加什么介词

I regret____ harder at school.A.not to have worked B.not having worked I wish I had worked harder是什么意思 i have worked harder than before ( ) grade 7加什么介词 If I ( )harder at school,I would have a better job nowA.work B.worked C.had worked D.should work I regret ____ harder at school.A.not to have worked B.not having workedA为什么不对? 英语翻译have i worked? I am not surprised you failed the exam. you ___ have worked harder.A.Should B.must C.would D.ought 麻烦注明一下为什么 if he had worked harder,he would have succeeded,这里为什么要用would have succeded? My brother regrets____ harder while young.A.not have worked B.not workC.not having worked D.not to work I worked harder than anyone else in my class.=I worked harded than ___ ___ ___ in my class. If she had worked harder,she_____ A.would succeed B.would have succeed you -----have passed the exam if you had worked harder横线中应该填什么? I have to work harder,and harder still,I can do this! 一道关于虚拟语气的英语选择题If I had worked harder at school,I _____ in a comfortable office now.A.would sit B.would have sit C.would be sitting D.were sitting If I---harder at school ,I would have a better job now.A work B worked C had workedD should work..我选c这不是虚拟的吗? 一道英语虚拟语气的题If I had worked harder at school,I___________in a comfortable office now.A.would sitB.would have satC.would be sittingD.were sitting I have to study harder than before（一般疑问句） --I failed again.I wish I __ harder.--But you __.A.had worked,hadn't B.had worked,didn't