For that is what has happened.一段文章的开头,For 不是不能放在句首吗?怎么理解啊这个句子啊

翻译what is that for? What's wore is that pollution has ____ has been found out ____ oil food is bad for our healthA That ,that B That ,what C It ,what D It ,that CD怎么区别 帮我分析一下这句英文的句子结构和意思：For that is what has happened. IS THAT what YOU ARE LOOKING FOR为什么用what 54 ._____ is it ___ has made Peter ____ he is today ?A .What; that; that B .That; that; whatC .What; what; that D .What; that; whatplease explain 英语翻译1:Because she knows that she is fully prepared for her work.2:She can realize that they have not understood what she has explained. I'm glad that ...I'm glad that i've learned to balance things and it has helped prepare me for what is to come after graduation. What is it that has legs but can't walk? For that is what has happened.一段文章的开头,For 不是不能放在句首吗?怎么理解啊这个句子啊 39.He has lived here for years,_________ nobody knows what he is.A.and butB.thoughC.and yetD.for all that What is it that Adam has one,Eve has two and everyone has three? what has l done is onhy for you! What am I for you； What is you for me.nothing ,that is all. what的用法3.______ is it _____ has made Peter _____ he is today?A.What; that; that B.That; that; what C.What; what; that D.What; that; what ___ he has worked in the school for several years is known to everyone.A What B That C When D Where （）he has worked in the school for several years is known to everyone.为什么要填that,而不是what,不是缺主语吗? 英语翻译1.what is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real.it's a self-examination that has,at various times,involved issues of responsibility,creative freedom and the