If I had known you were coming to visit,I （ ）you at the airport.a will meet b would have meet c would meet选哪一个并解释

have had done与had have done区别——，I'd have told you.A.If I would have known B.If I had have known C.Had I known D.Should I know If.I.Had.You 英语：1.I would have phoned you ,if I ___ time.( )A.had had B.have had C.had2.If I __ her tomorrow,I would pass your note to her.( )A.see B.shall see C.saw3.__,I'd have told you.( )A.If I would have known it B.If I had known it C.Had I known it4.T If I had known that,I could have helped you.had和known怎么都是过去式,have在这里是什么意思,为什么它不用过去式 I wish I had known earlier that you could have acaree ,even if you are not top of the class . If I Had You 歌词 IF I HAD YOU怎么样 If only I________what you wanted!A.knew B.know C.had known D.have known 英语一句话的理解问题 if you'd said that befor i'd have knownif you'd said that befor i'd have known 两个是不是、都是had 关于英语虚拟语气的一些问题._____you were coming today ,I'd have met you at the railway station.A.Have I Known B.I have knownC.I had known D.Had I known我选的是C 按照虚拟语气的语法 表示过去式情况 从句If+had+过 If you had killed me, you know, you would be known all over the world Thank you very much indeed.If it had not been for your advice I really what I should have done.A.don’t know B.didn’t know C.hadn’t known D.wouldn’t have known 假如早知道我是个天才 IF I HAD KNOWN I WAS A GENIUS怎么样 if i had you 请问是什么意思? If I_____that erlier,I wouldn't have made that mistake.A.know B.had known C.have known D.knew 一道英语单项!—I’m sorry!I would have taken him to hospital if I had known he was seriously ill.—But_____.[ ]A.you didn't B.you hadn't C.he wasn't D.you aren't 1.if you _______more about giving first aid,you______us had known,could have helped2.Never _____such an animal as Jim described after his coming back from the New Zealand.have i heard 还是 did i hear,还是had i heard问:1中had known是根据could 1,____ ,I would have phoned you ,a,if I knew it b,had I known it c,if I know it d,did I know it.2 ,it was because of bad weather_____ the football match had to be put off.a,so b,so that c why d,that 3,scarcely____ the room ___ the phone rang.a,I had