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After looking at his watch,he hurried to the station.

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/11 15:46:11
After looking at his watch,he hurried to the station.
Or:After having looked at his watch,he hurried to the station.
第2句为什么可以用having替换
I must apologize.I interrupted you.
I must apologize for interrupting you.
I must apologize for having interrupted you.这句也是用的having
问题一
用having这个现在分词,因为后面的主语和having的主语是同一个.
问题二
介词for后面的ing是动名词.用having表示时间的先后,并影响到后面的动作.