Our professor asked us to write an argumentative essay on a subject of our choosingRT,为什么用choosing?复制搜索
问题描述：
Our professor asked us to write an argumentative essay on a subject of our choosing
RT,为什么用choosing?复制搜索
答
一、应该实名制的辩词：
二、不应实名制的辩词：
答
因为做了of 的宾语
答
动名词的复合结构.因为前面有介词of ,所以此处用v-ing形式.