he fled,slamming the door behind him 为什么有两个时态
问题描述:
he fled,slamming the door behind him 为什么有两个时态
When Mrs.Richards walked towards him,he fled,slamming the door behind him,这里fled为过去式,slamming为进行时,为什么出现两种时态
答
slamming 是现在分词作状语