Lt's bad---to speak with your mouth full of food应选 A manner B manners C way D thing

Lt's bad---to speak with your mouth full of food应选 A manner B manners C way D thing
Lt's bad---to speak with your mouth full of food
应选 A manner B manners C way D thing

Lt's bad---to speak with your mouth full of food应选 A manner B manners C way D thing
A manner是具体的举止
manners笼统的礼仪