动名词做主语的问题.--Henry doesn't seem like the same person.--____so much in the war has made him more thoughtful.A.Having seen B.His seeing 为什么不能选A,A不也是动名词,不可以做主语吗

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动名词做主语的问题.--Henry doesn't seem like the same person.--____so much in the war has made him more thoughtful.A.Having seen B.His seeing 为什么不能选A,A不也是动名词,不可以做主语吗

动名词做主语的问题.--Henry doesn't seem like the same person.--____so much in the war has made him more thoughtful.A.Having seen B.His seeing 为什么不能选A,A不也是动名词,不可以做主语吗
动名词做主语的问题
.--Henry doesn't seem like the same person.
--____so much in the war has made him more thoughtful.
A.Having seen B.His seeing
为什么不能选A,A不也是动名词,不可以做主语吗

动名词做主语的问题.--Henry doesn't seem like the same person.--____so much in the war has made him more thoughtful.A.Having seen B.His seeing 为什么不能选A,A不也是动名词,不可以做主语吗
having done 表示从句的动作发生在主句之前,强调先后关系,做状语,所以如果选A的话,句子就没了主语.

答案A
having seen一般用于简化的时间状语从句，与从句表现出时间先后的差。
所以选B
比如Having finished the supper ， they went out for a walk

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