he has finished his exercises
he wen out to play football with his friend
这两句话并一起,省略第一句的主语以避免重复,就要用分词形式,而finish是主动态,故用ing,若是被动,则要ed,比如:
Killed by a man,he was dead
he has finished his exercises
he wen out to play football with his friend
这两句话并一起,省略第一句的主语以避免重复,就要用分词形式,而finish是主动态,故用ing,若是被动,则要ed,比如:
Killed by a man,he was dead