------How many people in your faimly?------There are there people in famly, my father, my mother and I。------what do they do?——My father is an engineer and my mother is a doctor. ------你家有多少人?-----我家里有3个人,我的爸爸,妈妈和我------他们都是干什么的?——我的父亲是一名工程师,我的妈妈是一名医生。