He went to collage after leaving school=He went to collage after__ __ __school

问题描述:

He went to collage after leaving school=He went to collage after__ __ __school

having graduated from
He went to collage after having graduated from school。

3个空?只好用动名词复合结构了
his graduating from

He went to collage after leaving school=He went to collage after graduating from school school