______how to do it , we had to help him.

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______how to do it , we had to help him.
A.His not knowing B. The boy knowing not
C. He not knowing D. The boy's not having known
请详细分析

______how to do it ,we had to help him.
A.His not knowing B.The boy knowing not
C.He not knowing D.The boy's not having known
选A
这是独立主格结构
因为前后两句主语不一致,所以用独立主格
【物主代词+非谓语】的结构
B应该是The boy’s not knowing
D不应该用完成时
再问： ,分析得很清楚，但是答案是C
再答：嗯应该是C 这是独立主格，我和动名词的复合结构搞起来了独立主格主语应该是从句原本的主语的主格形式，这边就是he 动名词的复合结构不属于独立主格~

______how to do it , we had to help him. We must do what I can to help him这里为什么要用to help all we can do to help him is that give him some money if we had the change to do it all .If we had the chance to do it all again Mr.Zhu looks very busy.We want to help him,but we do not kno I don't know_______ to help him. A. how should we do B. what It made me angry that he kept on talking.We had to ask him t he put it what happened had noting to do with him If you have difficulty r___ to help him,let me do it all we can do to help him is that give him some money这句话会因为从 We had to send him to hospital,for he_