Hans explained how it was that he was still alive.句子成分是什么?

Hans explained how it was that he was still alive.句子成分是什么? I didn't want to do it_____you explained how.A if B.when C.unless D.until I didn't manage to do it ____ you had explained how.A until B unless C when D before D为什么不对? I don't manage to do it__you had explained how.选项A.until B.unless.C.when D.before答案是A．为什么B 不行? 一道英语单选题,I didn't manage to work out the problem( )the teacher had explained how.A.until B.unless C.when D.before为什么呢? 英语翻译explained how是解释如何做的意思么 一道英语选择题：I didn't manage to do it ____ you had explained how.I didn't manage to do it ____ you had explained how.A untilB unlessC when D before并解释一下其他选项不选的原因. is this the reason .is this the reason --------- in the repourt for her success in the job?A she explained B why she explained C how she explained he didn't work out the problem ( ) I explained ( ) to himA.until,what B.until ,how 选哪一个,为什么我选what,不是说how应该有it之类的吗，what后面没有，为什么这题选B呢 Not until_the whole thing to him_that he was wrongA.had I explained,he realizdeB.had I explained,that he realizedC.I had explained,that he realizedD.I had explained,did he realized the more he explained,the more I was puzzled Hans是什么意思 HANS怎么样 hans是什么意思? hoG | Hans Is this the very reason _________ at the meeting for the carelessness and pride in his work?A. he explained B. what he explained C. how he explained D. why he explained Is this the reason _____ at the meeting for his carelessness in his work?A.he explained B.what he explained C.how he explained D.why he explained I didn't manage to do it ___you had explained how.A.until B.unlessC.whenD.before这种题目是看意思做的还是?我为什么觉得ABD都可以