They are comfortable having Chinese food中have为什么要加ing

They are comfortable having Chinese food中have为什么要加ing They are comfortable having Chinese food,中的having能用to have来代 it's time have having some cakes为什么这里have要加ing形式 They are watching TV watch为什么要加ing they are hanging out in the shop.they are free.为什么hang要加ing 为什么不是having a good time 而是have a good time 为什么不加ing 不是动词开头要加 They have comfortable___(have) Chinese food 理由 英语中are后面的动词为什么要加ing? we don't have a Chinese class today,they are having an Engli they are waiting for you为什么加ing They are very comfortable_____ (have) Chinese food.横线上应该填to 这里为什么要加ing?Are they good at helping you?