if he had worked harder,he would have succeeded,这里为什么要用would have succeded?

if he had worked harder,he would have succeeded,这里为什么要用would have succeded? Stave said that if he had known how it worked,he would have been told ___ he would have succeeded in the examinations.A If he has worked hard B If he works hard C If he worked hard D Had he worked hard 选什么?为什么? 虚拟语态问题If he had worked hard,he (would have succeeded)为什么不能用would succeed? While_______money,he had worked very long hours Dr Bethune worked hard as if he ______.Dr Bethune worked hard as if he ______.a.never had felt tired b.had never felt tired c.never felt tired d .was tired never 英语翻译he took no account into my feelings,what this would have done to me if it had actually worked. if he had worked hard at high school ,he would be a college student like you today 为什么是would be不是had been He said that he had worked all day yesterday.had worked 我用的对吗? if she had worked harder,she_A.would succeedB.should succeed He said he ( ) in that factroy since 1949.A.has worked B.had worked C.worked D.was working If he had worked hard____.A.he might have passed the final examB.he might pass the final examC.he has passed the final examD.he passed the final exam He said ______for the firm for over ten yearsA.has worked B.had worked 新概念英语第二册的语法题!1If he had worked harder,he().A.would succeedB.had succeededC.should succeedD.would have succeeded请问为啥选D呢?为啥不选A呢? ________harder,you would have passed this exam.A.If you have worked B.If you worked C.Were you to work D.Had you worked 问个初级英语问题 if he had worked harder,he______A would succeed B had succeeded C should succeed D would have succeeded 为什么选D 这是什么语法现象 How long has he worked in the radio studio? Can you tell me.合并成宾语从句是he had worked 还是he has worked说明一下理由 _____he had never worked so hard in his life.选择A.It seemed to me that B.He seems as if C.There seemed that D.He seemed like