it would have been tremendous 如题,这样一个句型如何解释

It would't have been better if it'd been a little bit cooler. You didn't do it but it would have been the right thing to do这里的have been,为什么要用have been?u33 If it hadn't been for the captain,the ship would have sunk. I would't have succeeded___for his help then.A.hadn't it beenB.were it notC.had it been notD.had it not been谢. （ ）a good match if it( ).A.would have been,hadn't rained B.will be,hadn't rained C.would have been,shouldn't rain D.will have been,didn't rain If the flower had been watered,it __as it is.A.wouldn't be B.wouldn't have beenIf the flower had been watered,it __as it is.A.wouldn't be B.wouldn't have been C.would be not D.would have not been 正确答案选A,我选的B.我想问下A和B的区别 __their help ,we would not have succeededA Hadn't been for B Had it not been for C It hadn't been for D Had not it been for给理由,谢谢 If it hadn’t rained yesterday,I would have been to Su Zhou.请问这句话如何翻译? If it hadn’t rained yesterday,I would have been to Su Zhou.请问这句话如何翻译? Would you have called her up had it been possible? what a priceless boon it would have been 求翻译 If ihad had atry,it would have been different. if it hadn't been for your timely help,I___.A.would fail B.would have failed C.will fail D.should fail Given who it was,it would have been more logical to have rung the player . I would have paid a visit to you____possibleif it were would it be had it been should it have been选什么为什么 I would have come sooner ____possible,but I____that your were still waiting for me.A.it were...didn't konwB.were it ...hadn't knowC.it had been..wouldn't have known D.had it been...didn't know.答案是选D.希望可以解释一下这句话的意思. 2道高中英语语法题1.___ his warning,we would not have escaped the burning dacing hall.A.Hadn't been for B.Had it not been for C.It hadn't been for D.Had not it been for2.It was in the lab ___ was taken charge of by Prof.Harris ____ they did th It couldn't have been on the moon.