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

发布时间:分类:英语作业答案
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