You shouldn't mind being criticized,so long as it is helpful in improving your work.
例句中 shouldn't mind being criticized 是表示虚拟语气吗,是不是实际上他很在意被批评?
后半句的it是形式主语,真正的主语是in improving your work吗?
《高考英语备考1号·速效编》
《高考英语备考1号·写作编》
《高中英语晨读晚记》
《高中英语错题笔记》
《零起点考大学英语》